歷史

南唐的成立可以追溯到吳國權臣徐溫的身上。徐溫原本是吳國（楊吳）的開國功臣，後來他漸漸掌握了南吳的實權。他年老的時候，因親子徐知訓驕狂被殺、徐知詢等年少能力不足，信任養子徐知誥，也漸給與他繼承人的地位。

徐溫去世後，徐知誥設計控制了徐溫的親子徐知詢，掌握了吳國的軍政。937年，徐知誥代吳稱帝建國。根據《新五代史》、《舊五代史》、《南唐書》、《十國春秋》等史籍記載，徐知誥篡奪政權所建國號為齊，都金陵，號江寧府（今江蘇南京），史家稱之為徐齊。939年，徐知誥回復自稱的本姓李姓，並改名李昪，為了附會已滅亡的唐朝，把國號改為唐，以其位于南方，史稱南唐。不過，《資治通鑑》卻記載937年徐知誥即帝位時，即以唐為國號，並不認為徐齊曾經存在過。後又稱江南國。江淮地區的吳與後繼的南唐國勢強盛，他們採取聯合北方契丹國制約中原的策略，屢次征討周邊國家壯大勢力，成為中原王朝的一大威脅。

李昪稱帝時期是南唐的盛世，經濟繁榮，文化昌盛。中主李璟時由於與周邊各國多次興兵，945年滅閩國、入侵楚國等使國力衰退，不但因此失去進取中原的良機，還因為策略不當等原因只占領了閩國的少部分地區，滅楚所得的土地更是都被武平軍節度使劉言收複。

955年，周世宗發動後周攻南唐之戰，南唐大敗，958年被迫將長江以北十四州割讓給後周，並且稱臣，奉後周年號，去帝號改稱唐國主，而周世宗稱其為「江南國主」。宋朝建立後，南唐維持現狀，用宋朝年號。961年，為應對宋朝巨大的軍事壓力遷都南昌府。後主李煜繼位後，仍都江寧。

971年，宋朝改唐國主為江南國主，李煜去鴟吻，諸王降封為公。974年，後主李煜為保政權拒絕入朝，被宋討伐，于是棄用宋年號，改以幹支紀年。公元976年1月1日，北宋滅南唐。李煜投降後命令各地守將投降，但昭武軍節度留後盧絳退保宣州並殺死歙州刺史龔慎儀後據州繼續抵抗，後被宋太祖勸降；江州刺史謝彥賓在投降前被指揮使胡則所殺，守軍推胡則為刺史，也繼續抵抗宋軍直到四月城破。李璟與李煜兩父子在中國文學上是有名的詞人，可是因為其不理朝政，只專注於作詩上，所以終被滅。

南唐極盛時統治地區包括今江蘇、安徽兩省淮河以南、蘇北東部、福建、江西、湖南、湖北東部。鄭方坤稱：「十國文物，首推南唐、西蜀。」馬令《南唐書》卷十三《儒者傳論》說：「五代之亂也，禮樂崩壞，文獻俱亡，而儒衣書服，盛于南唐。豈斯文之未喪，而天將有所寓歟？不然，則聖王之大典，掃地盡矣。南唐累世好儒，而儒者之盛，見于載籍，燦然可觀。如韓熙載之不羈，江文蔚之高才，徐鍇之典贍，高越之華藻，潘佑之清逸，皆能擅價于一時，而徐鉉、湯悅、張洎之徒，又足以爭名于天下。其餘落落，不可勝數。故曰江左三十年間，文物有元和之風，豈虛言乎？」

君主

君主列表

君主世系圖

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注釋

Name

The names and titles used by Southern Tang rulers changed several times throughout its existence. In the 930s Xu Zhigao ruled as king over a sizeable territory called Qi (齊) that existed within Wu. After deposing the Yang Imperial family in 937 he adopted the title of emperor and announced the creation Great Qi (大齊). The Zizhi Tongjian referred to this state as Tang from its foundation, while the majority of historical sources, including the Old History of the Five Dynasties, New History of the Five Dynasties, and the Spring and Autumn Annals of the Ten Kingdoms, referred to the state as Qi. They begin to use Tang only after Xu Zhigao adopted the name Li Bian in 939.

Unlike the continual unrest and rebellions of the Central Plains, Tang rule across the Yangtze and Southern China had been generally more successful. These halcyon days had become a source of nostalgia for people in the south. This respect paid to the deposed dynasty became a useful political tool for Li Bian. The Later Tang were overthrown in late 936, which opened the way for Li Bian to claim it. In February 939 Li Bian renamed his realm to Great Tang (大唐). Taking on the name of Tang increased his status. Such a move could be easily construed to mean "the potential unification of Chinese territories under one ruler."

Li Jing was defeated in 958 by Later Zhou Emperor Chai Rong. The Southern Tang were forced to cede their territories north of the Yangtze and become a vassal of the Later Zhou. Li Jing additionally had to renounce claims to emperorship. The rump state was centered on Jiangnan, which was used by both the Later Zhou and the Song to refer to the Southern Tang. Later Zhou correspondence called Li Jing the "Ruler of the State of Jiangnan" (江南國主). He however used the title "Ruler of Tang" (唐國主) and "Seal of Tang" (唐國之印) for the government.

Li Yu, the third and final Southern Tang monarch, initially used the title and seal of his father. He attempted to demonstrate obeisance to Emperor Taizu after the Song conquest of Southern Han. Li Yu created a more modest "Seal of Jiangnan" (江南國印) and abandoned "Ruler of Tang" in favor of "Ruler of the State of Jiangnan", which remained used until 976 when he surrendered to the invading Song armies. Taizu gave Li Yu the humiliating title of Marquis of Disobedience (違名侯) when he arrived in Bian.

Historical texts produced during the Song dynasty were named after Jiangnan, with variants of Jiangzuo (江左) and Jiangbiao (江俵) also used. By not using the formal name it claimed, authors denied the Southern Tang "the status of an independent state." Reign titles of rulers were likewise seen as unacceptable and their personal names were used exclusively.

Background

Yang Xingmi was the Jiedushi of Huainan Circuit during the final years of the Tang dynasty. Throughout a series of conflicts with neighboring officials he expanded his control over most contemporary Jiangsu and Anhui, along with parts of Jiangxi and Hubei. In 902 Emperor Zhaozong recognized Yang Xingmi's conquests and granted him the title of the Prince of Wu (吳王). He ruled for three more years and died in 905. Yang Wo succeeded his father as the Prince of Wu.

In 907 the last Tang Emperor was evicted from power by Zhu Quanzhong, who declared the Later Liang dynasty. Yang Wo did not recognize this regime change as legitimate and continued to use the Tang era name of 'Tianyou'. Without a reigning Tang emperor, however, he was in effect an independent ruler. In 921 Yang Longyan proclaimed his own reign title. His brother Yang Pu continued this trend of asserting ideological independence from the Kaifeng based regimes by claiming the title of Emperor in 927. This irrevocably ended diplomatic contact with the Later Tang.

During a campaign in 895 an orphaned child was captured, whom Yang Xingmi initially took into his household. However, his oldest son Yang Wo disliked the child, and so Yang decided to give the child to his lieutenant Xu Wen. The child was given the name Xu Zhigao. Using the threat of Wu-Yueh raids as an excuse, Xu Wen turned Chiang-nan into his base of operations. This in time would morph into the Kingdom of Qi.

While Xu Wen assumed a position of power over the Yang family, he likely did not depose them due to unfavorable circumstances rather than the lack of will to do so.

In 927 Xu Zhigao inherited Xu Wen's position of power behind the Wu monarchy and laid out the groundwork for his seizure of the throne. He feared that the majority of the bureaucracy still supported the imperial Yang family. The Crown Prince Yang Lian was arranged to marry one of his daughters.

In September 935 Yang Pu and Xu Zhigao settled on the territorial extent of the kingdom of Qi as having 10 of the 25 prefectures then under Wu control. Yang Pu awarded Xu Zhigao the title of King of Qi (齊王) in March of 937. In May he dropped the ranking character 'zhi' from his given name to distinguish from his adopted brothers and was now known as Xu Gao. In October of the same year Yang Pu surrendered the state seal to him, ending Yang rule of Wu

Foundation

On 11 November 937 Xu Gao formally ascended the throne. Xu Gao took inspiration from Tang governance and established two capitals. Jingling was already his seat of power and became the principal location of the court. The old Wu capital of Guangling meanwhile maintained some significance as the secondary capital. His reign according to Robert Krompart represented the initial rebuilding "of the social, economic, administrative, and religious forces that produce stability in China."

On 12 March 939 Xu Gao took on the name of Li Bian. He additionally authorized a genealogy that claimed descent from the Tang Imperial family. Records vary about whom his supposed Tang progenitor was. Johannes L. Kurz concluded that the more reliable sources state his ancestor was either son or a younger brother of Xuanzong. On 2 May 939 Li Bian performed the traditional sacrifices to Heaven. Jingnan and Wuyue sent ambassadors praising this event.

Li Bian encouraged the bureaucratization of his court, taking power away from military officers. The constant turmoil of the Central Plains created a pool of experienced emigré officials that relocated to the more stable south. Li Bian was in particular interested in men versed in Confucian rituals. Ma Ling (馬令) reported that the civilian government maintained by Li Bian "was humane and attracted men from far and near." Among these recruits was Han Xizai, who rose in prominence during the reign of Li Jing.

The question of succession arose near the end of Li Bian's reign. He preferred his second son Li Jingda. However his oldest son Li Jing was eventually picked as his heir. In 943 Li Bian died and Li Jing succeeded his father.

Economy

The Southern Tang and its neighbors were relatively prosperous compared to regimes successively in control of the Central Plains. The greater agricultural productivity of the region created favorable conditions. Consistent tax revenues were secured with the growing disposable income of the populous. Interstate trading of specialized crafts like colored silks and salt reclaimed from the Huai River likewise was promoted by the Southern Tang.

Agricultural practices along the lower Yangtze River had undergone major modifications in the final years of the Tang dynasty. Irrigation and water management systems were more complex than in previous years. Intensive cultivation of rice was conducted in lowlands and adjacent reclaimed areas from waterways. Silk production developed into a regional cottage industry as farmers planted mulberry trees alongside their cereal crop. Meanwhile, in nearby piedmont areas agriculturalists became specialized in growing tea or textile plants like hemp (麻) or ramie (苧). These practices were in efflorescence during the Southern Tang, which created the most developed agricultural economy among the southern states. Rice farmers had better yields and in general had more disposable income than their predecessors. This led to more state revenue by taxes on cereal and cash crops.

Li Bian pursued the economic development of his realm through a number of fiscal policies. Song Qiqiu drafted many initiatives that focused on tax reform that were implemented. According to Sima Guang these were successful, as "the lands of Huai were fully planted, sericulture was widespread, and the Tang state grew rich and strong." Mulberry trees (桑樹) were planted in large numbers in the Huai and Yangtze River basins. In May 939 farmers that had cultivated 3,000 or more in the past three years were given fifty bolts of silk from Li Bian's treasury. Payment of 20,000 copper cash was awarded to those that reclaimed at least 80 mu (≈1,040 acres) of land. All new fields they cultivated were not taxed for 5 years. These measures have been credited with increasing agricultural production across the realm.

During the reign of Li Jing he authorized several military ventures that according to He Jainming incurred heavy financial burdens that inhibited further economic development of the Southern Tang realm. Tributes were paid to the Later Zhou once they defeated the Southern Tang in 958. After the Song dynasty was established in 960 these payments became exorbitant. Tribute to the Song incurred a downturn of the Southern Tang economy.

After forcible incorporation into the Song Empire the former southern kingdoms became the focal point of the Chinese economy. Throughout their brief period of independence they had "laid the groundwork for the great economic surge that followed."

Coinage

Copper mining in the north was heavily disrupted by the constant warfare of the Five Dynasties and Ten Kingdoms era. In consequence bronze coins became scarce. The situation became dire in northern China. In 955 the Later Zhou Emperor Chai Rong banned the possession of bronze utensils upon pain of death. The Southern Tang and their neighbors minted coinage from clay, iron, or lead. These coins for domestic circulation (despite having minimal value intrinsically) and to prevent the export of precious bronze coinage to neighboring states.

Li Bian possibly cast a coin with the inscription Daqi Tongbao (大唐通寶) while the state still had its original name of Qi. During the reign of Li Jing several cash coins were created of different commercial value. Datang Tongbao (大唐通寶) and Tangguo Tongbao (唐國通寶) coins maintained the same inscription, size, and weight but used different fonts of Chinese calligraphy Yongtong Quanhuo (永通泉貨) coins were initially valued at 10 copper coins but counterfeits were widely circulated leading to distrust of them. Copper coins were still preferred by the populous, which caused a rapid depreciation of the newer coins. Kaiyuan Tongbao (開元通寶) coins that were created during the Tang dynasty remained in circulation. Li Yu later minted coins with the same inscription in clerical and seal scripts.

The Southern Tang were the first in Chinese history to issue vault protector coins, which served as numismatic charms.

They were hung on red silk and tassels in the spirit hall of the Imperial Treasury for offerings to the gods of the Chinese pantheon, especially the Chinese God of Wealth.

Culture

Artwork

The majority of Southern Tang court painters with surviving documentation were natives of Jiangnan. It is likely that the area had a potent artistic tradition before the formation of the Southern Tang. While most subjects were inherited, Southern Tang painters developed relatively new genres such as "landscape, ink bamboo, and flower-and-bird painting." Additionally they developed artwork focused on marine life. Their Tang predecessors apparently did not paint fish. Dong Yuan and his students developed a unique style of landscape painting known as the Southern School, which influence artists in the Song and Yuan dynasties. Sculptures crafted with detailed pictorial reliefs became widespread and surviving examples can be found at the Qixia Temple outside Nanjing.

The Hanlin Academy (翰林院) was founded in 943 and had large amounts of accomplished painters. There were only two other artistic academies in operation during the period. Those employed by the institution held hierarchical titles that denoted rank. The lowest ranked were likely apprentices to established artists. The Emperors of Southern Tang took part in the administration of the Hanlin Academy and oversaw the hiring of new painters. Wu Daozi and Zhou Fang were among the stylistic standards for Southern Tang painters. As successful artists took on apprenticeships the styles and genres popular with the Southern Tang court were likely transmitted to many artists outside the Hanlin Academy. In 975 the Song conquered the Southern Tang. Talented painters and poets were subsequently hired and brought to the Song capital.

Four Treasures of the Study

The Four Treasures of the Study of the Southern Tang or Nan Tang Wenfang Sibao (南唐文房四寶) focused on brushes made by the Zhuge family, dragon tail inkstones (龙尾砚), inksticks crafted by Li Tinggui (李廷珪), and Pure Heart Hall paper (澄心堂紙). By the middle of the 11th century the Four Treasures were appreciated by Song literati who amassed private collections of them. While Song literati noted the quality of writing instruments, they did not perceive the Southern Tang regime itself as exceptional.

Brushes produced by the Zhuge family of Xuanzhou were popular among the Southern Tang. Li Congqian (李從謙) of the imperial family in particular greatly cherished the brushes. They later received praise from Song literati like Mei Yaochen and Ouyang Xiu. Zhuge brushes kept a position of prominence until the mid-Northern Song era. The quality of Zhuge brushes began to decline. Song scholars developed a new calligraphic style of writing frame-less characters (無骨字) which required more flexible brushes than those made by the Zhuge family. Competing brush producers from other areas, especially from Huizhou, overtook the Zhuge brushes in popularity.

Dragon tail inkstones were another literary tool produced by the Southern Tang. They were made in the vicinity of Wuyuan. Li Jing established the Inkstone Bureau (硯務) to set annual quotas of their production. Skilled craftsmen that worked for the bureau received monthly salaries. Efforts were overseen by an Inkstone Officer (硯官). Dragon tail inkstones were prized possessions and offered as gifts among the Southern Tang literati, a tradition that continued into the Song dynasty. The most valued dragon tail inkstone contained minerals of a golden hue and were called jinxing yan (金星硯).

Emperor Zhenzong had a dragon tail inkstone among his collection, which provoked further interest in them by Song literati. Su Shi considered them second only to Phoenix beak inkstones (鳳咮硯), at point trading a bronze sword for a dragon tail inkstone. In the 13th century Yao Mian (姚勉) wrote a poem about a dragon tail inkstone once opened by Su Shi:

During the late Tang dynasty Xi Nai (奚鼐) established himself as a prominent inkstick manufacturer in Hebei. His son Xi Chao (奚超) migrated to Shezhou to escape the continual instability of the period. There the family utilized Huangshan pine trees to produce huimo (徽墨) inksticks. The highest quality were produced by Xi Chao's son, Xi Tinggui, whose skill was recognized by Li Yu. The Southern Tang ruler bestowed his family name (Li) to the Xi family in honor of their craftsmanship. Now called Li Tinggui, his products became known as Li Tinggui mo (李廷珪墨 "Li Tinggui Ink"), while those made by his relatives were called Lishi mo (李氏墨 "Li Family Ink'').

Initial Song emperors did not value Lishi mo and used it as a source of paint for restoration projects. It was not until the reign of Emperor Renzong that Lishi mo and Li Tinggui mo in particular were recognized for their quality. Emperors gave them as presents to their scholars. Cai Xiang created a collection of Lishi mo made by four generations of the Li family. Emperor Shenzong rewarded the polymath Su Song with Li Tinggui mo for his scholarly pursuits. Li Tinggui's ink remained the standard to which other inksticks were compared until the reign of Emperor Huizong.

An important paper medium for the Southern Tang was Pure Heart Hall paper. During the Tang dynasty generations of Jiangnan craftsmen developed their skills and artistic talent in creating paper. These trends were used by their successors in the Southern Tang to create Pure Heart Hall paper. This distinctive paper became the official paper for royal proclamations. Only privileged officials were given any for use in creating government documents. Pure Heart Hall paper retained its importance throughout the Southern Tang, it was so prized that it was not sold in marketplaces. After the Song defeated the Southern Tang a multitude of imitation Pure Heart Hall papers appeared as the process for creating genuine articles had become lost.

Song literati began to value Pure Heart Hall paper after a gathering of notable scholars that included Liu Ban (劉攽), Mei Yaochen, Ouyang Xiu, Su Shi, noted its quality in poetic works. Ouyang Xiu later gifted Mei Yaochen two scrolls of Pure Heart Hall paper for calligraphy. Song painters utilized the paper for their artwork. Li Gonglin in particular only used Pure Heart Hall paper for his compositions.

Cuisine

Among the culinary options available in the Southern Tang was a pastry called yunying chao (雲英麨). It was often given as a gift during celebrations. Yunying chao was made from ground melon and a medley of flower bulbs and corms: lilies (百合), lotus (蓮), arrowhead (慈姑), fox nuts (雞頭), taro (芋), and two kinds of water chestnuts, 荸薺 and 菱. The mixture was steamed, sweetened with honey and then sliced into pieces. The dish continued to be made during the Song Dynasty.

Foreign relations

The foreign policy maintained by Li Bian has been described as maintaining a "martial conservatism." He recruited disaffected officials exiled from the north who found his realm to have bountiful resources. This made some of the newcomers contemplate its ability to expand territorially. The perceived need for Li Bian to prove his legitimacy through military conquest likewise motivated many Southern Tang officials.

Li Bian however felt it was sensible to foster friendly relations with the other southern states.

He dispatched ambassadors to the neighboring states of Jingnan, Min, Southern Han, and Wuyue on 21 November 937 to announce his assumption of the throne. By spring of the following year all four states had sent their own envoys to congratulate Li Bian on becoming emperor. Thus began interactions between the Southern Tang and their neighboring and often competing states.

In 941 Li Bian held meetings with his officials about the geopolitical position of the Southern Tang. He felt if the Southern Tang were to invade Wuyue, then the Later Jin would surely launch a counter-attack to protect their vassal. While the Min Kingdom was much easier to conquer, it was also likely to be a financial burden and source of disorder. Both states were much more useful as buffers against the North than areas of expansion. If a propitious opportunity arose to strike the "usurpers and thieves" in control of the Central Plains he declared he would act. After their defeat the Imperial Court would relocate to Chang'an and rebuild the dilapidated city. The restored Tang Empire would then encourage the remaining Southern states to recognize their legitimate rule and submit.

Officials pushed for attacking the Later Jin. Li Bian refused to engage in a conflict at that time as he felt it was inopportune:

Unlike his father Li Jing pursued territorial expansion against neighboring states.

In 945 the Min Kingdom was conquered, although the Wuyue gained control of the prosperous port city Fuzhou. Chu was subjugated in 951 but much of the state was lost in a rebellion against the deeply unpopular Southern Tang administration.

According to Sima Guang these initially successful campaigns against Chu and Min made Li Jing grow an "ambition for the empire." Xuan Xu recorded in the Jiangnan Lu that certain officials sent requests to the Imperial Court for the Southern Tang "to secure the four quarters" (經營四方) through military conquest. These typically disastrous schemes were formed by certain officials keen on creating opportunities for their own advancement.

Five Dynasties

The term "Five Dynasties" was coined by Song dynasty historians and reflects the view that the successive regimes based in Bian possessed the Mandate of Heaven.

Compared to regimes of the Central Plains, the Southern Tang were economically prosperous. This created bottlenecks for any army advancing north as long supply trains were required. The Southern Tang military utilized a combination of infantry and naval forces, while cavalry was seldom employed. However, in the open Central Plains cavalry forces held the advantage. Peter A. Lorge concluded that these circumstances made Southern Tang campaigns into the Central Plains logisitically challenging.

Hino Kaisaburō has detailed the principle routes used for inland economic and diplomatic exchanges between northern and southern Chinese states. These were the Grand Canal, Gan River, and Xiang River. Control of the Grand Canal was divided between several states, therefore it was the least used route in the era.

Later Jin

In 936 Shi Jingtang secured an alliance with the Yelü Deguang to overthrow his brother-in-law Li Congke of the Later Tang with Khitan forces. He ceded the Sixteen Prefectures, promised annual tribute, and accepted a subordinate role to Yelü Deguang. In return the Khitan ruler appointed Shi Jingtang as Emperor of the Later Jin. Throughout his reign Shi Jingtang maintained amicable relations with his overlord, despite criticism from many officials.

In the summer of 938 Song Qiqiu proposed for the assassination of a Khitan dignitary that was visiting the Southern Tang court when they returned north through Later Jin territory. He felt that the murder could provoke a war between the Later Jin and the Khitans. While successful in killing the envoy, the harmonious relations between the Later Jin and Khitan continued.

In 940 the Southern Tang supported backed a rebellion in the Later Jin territory Anyuan. Li Bian broke his policy of maintaining peaceable relations with neighboring states in a campaign that ultimately ended in Southern Tang failure. The military commissioner of Anyuan, Li Jinquan, contacted the Southern Tang with an offer to change allegiance from the Later Jin to the Southern Tang realm. Li Bian accepted the offer and sent an army northwards.

Southern Tang forces met up with Li Jinquan as planned. But against Li Bian's commands its commanders ordered the looting Anlu. Afterwards, the Southern Tang army began to return home. Later Jin forces eventually caught up to the sluggish Southern Tang army and decisively defeated them in Mahuang Valley. The disobedience of his commanders upset Li Bian greatly. In a letter to Shi Jingtang, he claimed his generals were uncontrollable, as they were keen on career advancement through combat, and pressed for amicable relations. Thus ended Southern Tang pretensions to the Central Plains for the time being.

Under the influence of Jing Yanguang, the second Later Jin Emperor Shi Chonggui pursued an antagonistic course with his overlord Yelü Deguang. This incensed the Khitan ruler who launched an invasion and defeated Shi Conggui in 946.

Later Han

By 947 Liu Zhiyuan had evicted the Khitan forces and established the Later Han dynasty.

Based in modern Yuncheng, Shanxi, the Later Han military governor of Huguo Circuit (護國]), Li Shouzhen, revolted in the summer of 948. He sent envoys to Jinling in the hopes of securing an attack on the Later Han's southern flank. Li Jing was amenable to an intervention and dispatched an army under Li Jinquan from the Huai River. This force reached modern Shandong, encamping across the Yi River from Linyi. One evening Later Han forces appeared and attempted to encircle the Southern Tang base. Li Jinquan was able to lead a retreat to the port of Haizhou with his forces intact. His inaction against the Later Han perturbed Li Jing that Li Lingquan never held another active military posting.

After the ignominious withdrawal Li Jing contacted Liu Chengyou calling for the resumption of trade between the Southern Tang and Later Han. This request was denied and the two states continued to clash in border conflicts throughout 949. In March an army of 10,000 was sent across the border into modern Anhui. Later Han rebel groups operating there were receptive to accepting Southern Tang rule. While stationed there a Southern Tang army captured Mengcheng. The Southern Tang commander hesitated when a Later Han army arrived and called for a retreat back to the Huai River. Later that year another army was sent to seize territory across the Huai River. The campaign focused on Zhengyang, a city of strategic importance due to the ease of crossing the Huai River there. As in previous attempts of expanding north the Southern Tang army suffered a defeat from Later Han forces and retreated to the Huai River.

Later Zhou

In March 951 the Later Zhou Emperor Guo Wei decreed in an edict to regulate contact with the Southern Tang:

The Southern Tang were initially able to export their tea, salt, and silk without impediment to the Central Plains. Additionally the positive relations allowed the Southern Tang to pursue the conquest of Chu without Later Zhou interference. This period of peaceable interactions quickly deteriorated as Guo Wei enforced his will over northern China.

In 952 a member of the deposed Later Han imperial family, Murong Yanchao, revolted against the Later Zhou. He was able to court military intervention from the Northern Han and the Southern Tang although neither actually provided much assistance. At the time the Southern Tang were experiencing great difficulty in securing their recent conquests in the kingdom of Chu. Their unpopular administration provoked provincial revolts. The Southern Han meanwhile began an invasion to secure Lingnan. These military pressures likely explain why Li Jing only sent 5,000 troops to assist Murong Yanchao. The Southern Tang army reached Xiapi before Later Zhou resistance was met. Pushed south of Xuzhou, the Southern Tang lost a pitched battle and lost over 1,000 troops. Despite this failure, court officials pushed for conquering the Later Zhou. Han Xizai advised strongly against the idea as he felt Guo Wei was in a position of power. Li Jing ultimately concurred and ceased hostilities.

Wang Pu composed a plan for the reunification of China. The memorial was sent to the Emperor Chai Rong in spring 955. The Southern Tang border was lengthy and likely would be hard for defending forces to keep Later Zhou armies out. This made them an ideal candidate for expanding Later Zhou power according to Wang Pu.l}

The Huai River became shallow during the winter and was not difficult to cross on foot. Southern Tang commanders annually posted troops along the river to protect against possible invasion. This practice was kept up until 955 when the commander of Shouzhou decided the practice was wasteful. Other officers in the area failed to convince Li Jing of how dangerous the lack of northern defenses was.

Liu Yanzhen was appointed over 20,000 troops to defend against the invading Later Zhou, despite Song Qiqiu critiquing his inadequacies as a commander. At Zhengyang the Later Zhou constructed a floating bridge to cross the Huai River and invade Huainan. Going against advice to maintain a defensive posture, Liu Yanzhen led an advance to Zhengyang. A Later Zhou force under Li Chongjin had recently crossed the bridge and moved to engage the incoming Southern Tang. The battle was a decisive rout for the Southern Tang as they lost 10,000 men and Liu Yanzhen himself was executed. The Later Zhou began to capture settlements south of the Huai River.

On 2 March 956 Chai Rong arrived at Zhengyang and assumed personal command of the Later Zhou campaign. He ordered Shouchun to be encircled. A Southern Tang relief force 3,000 strong en route to Shouchun was defeated on 18 March about 10km from the besieged city.

Li Jing had not prepared Yangzhou for a potential invasion by the Later Zhou as his defensive strategy depended upon armed positions along the Huai River. When Chai Rong learned of the unprepared state of Yangzhou he ordered a raid upon it. Several hundred Later Zhou cavalry managed to infiltrate Yangzhou on 4 April without being detected by the city garrison. Surprised at the sudden appearance of enemy forces, the local commander set the city ablaze and retreated.

Li Jing pleaded for peace and offered to become a Later Zhou vassal. On 1 April Chai Rong rebuffed Southern Tang envoys and Li Jing's proposal: Several more peace feelers were sent throughout the spring. Six prefectures were offered to be ceded to the Later Zhou. This was not an appealing proposal to Chai Rong as his forces had already occupied sizable territories south of the Huai River.

Li Jingda was appointed to command the entire Southern Tang military. Despite criticism of their paltry performances as commanders by Han Xizai, Bian Hao and Chen Jue were selected as his subordinates. Over 10,000 Southern Tang troops were dispatched and briefly reclaimed Yangzhou. Li Jingda meanwhile established a defensive position with 20,000 men around 50km west of Yangzhou. This force was ten times larger than the Later Zhou armies in the area. In an ensuing battle the Later Zhou cavalry crushed their opponents. Over half of Li Jingda's army was killed, destroying much of the Southern Tang pool of veteran troops.

Chai Rong departed for Bian on 17 June and left his armies under the command of Li Chongjin. The Southern Tang made minor gains against the Later Zhou in his absence. Rather than push an offensive, Li Jing took the advice of Song Qiqiu and ordered his commanders to remain on the defensive and not attack Later Zhou positions. After the embarrassing string of defeats in the campaign Li Jing likely doubted the abilities of his remaining officers. Shouchun meanwhile remained under siege by the Later Zhou. Southern Tang forces under Li Jingda were concentrated at Haozhou, roughly 90km away from the embattled city. A relief force was sent and reached Purple Mountain where they erected defensive structures. Li Chongjin led an attack on the stockades and killed around 5,000 Southern Tang troops.

Li Gu advised Chai Rong to assume control of the siege of Shouchun once more to bolster the morale of his troops. The city was also close to surrender. Returning south in April, on the 9th Chai Rong successfully attacked the Southern Tang positions at Purple Mountain. About 40,000 Southern Tang were killed and several of their generals were captured. The beleaguered garrison of Shouchun surrendered to the Later Zhou on 23 April. Southern Tang control over Huainan was firmly removed.

Throughout the winter of 957 Later Zhou forces captured a number of Southern Tang cities as they marched southwards, even gaining a direct land connection to their Wuyue vassal. In April 958 Li Jing sent out envoys again seeking peace with Chai Rong. The Southern Tang offered to cede all territory north of the Yangtze to the Later Zhou and become a vassal. These terms were acceptable to Chai Rong. The state once called Great Tang (大唐) was rebranded the less grandiose Jiangnan (江南). Li Jing renounced the title of emperor and assumed the title of King of Jiangnan. The Later Zhou calendar and reign title were additionally adopted by the court of Jiangnan. The Later Zhou gained control over almost a quarter million families.

Ten Kingdoms

Leadership across the Ten Kingdoms did not see a politically unified China under a centralized bureaucracy as necessarily inevitable. Their sovereignty was revoked only through force of arms. Conceptually there could only be one Son of Heaven but regional autonomy was still possible. Some kingdoms nominally accepted the suzerianity of the Five Dynasties. Several rulers simultaneously claimed to be emperors and still engaged in diplomatic exchanges with each other despite this breach of imperial orthodoxy.

Min

Wang Yanxi sent Zhu Wenjin in 938 to represent the Min court and praised Li Bian for his assumption of the throne. In January 940 Min representatives renewed arrangements previously made with the Southern Tang.

Throughout the early 940s the Min Emperor Wang Yanxi faced strife with his rebellious brother Wang Yanzheng. In 943 Wang Yanzheng seized the northwest regions of Min and formed the Kingdom of Yin. By February 945 Wang Yanxin had died and Wang Yanzheng reunited Min. The Southern Tang invaded soon afterwards. On 2 October 945 Jianzhou fell and Wang Yangzheng was captured. The majority of Min territory was now under Southern Tang rule.

Li Renda controlled the affluent port of Fuzhou. He initially submitted to Li Jing but was attacked after Southern Tang officials fabricated orders for his surrender. Li Renda appealed to Qian Hongzuo of Wuyue for aid. Throughout winter 946 and spring 947 Wuyue forces arrived on naval transports to protect their new vassal. The Wuyue and Fuzhou garrison killed over 20,000 Southern Tang troops. The siege was lifted and the war soon came to a close.

The conflict had incurred many expenses and for the Southern Tang and drained their treasury. The Southern Tang gained control of the Jianzhou and Tingzhou prefectures, while the Wuyue secured the area around Fuzhou. Control over the coastal prefectures of Quanzhou and Zhangzhou by Liu Congxiao was recognized by the Southern Tang, who appointed him Qingyuan Jiedushi. This vassal state maintained de facto autonomy from the Southern Tang until forcible incorporation into the Song dynasty three decades later.

Wuyue

The Wuyue had antagonistic relations with Wu and several conflicts occurred between the latter's pretensions to Min territory. The rulers of Wuyue maintained a status of vassal to the Northern dynasties as this protected them against Wu and later Southern Tang aggression. If attacked, their northern suzerians could strike at Southern Tang territories along the Huai River. This kept the Southern Tang and Wuyue in a state of equilibrium.

When Li Bian sent messengers announcing his assumption to throne the Wuyue were the first to send their congratulations. In January 941 emissaries presented gifts from Wuyue to celebrate Li Bian's birthday. In August 941 the Wuyue capital of Hangzhou was devastated by fires. The ensuing chaos greatly distressed Qian Yuanguan, who died soon afterwards. Southern Tang military officers pushed for an invasion to seize Wuyue. Li Bian demurred to the idea: "How can I take advantage of the calamity of other people?" Instead an army Li Bian sent out foodstuffs for the beleaguered people of Hangzhou. An opportune time to strike at a major rival of the Southern Tang was therefore passed over. Dialogue between the two states apparently ended in 942 due to their mutual contentions over Min.

Wuyue became entangled in the Southern Tang conquest of Min. They sent forces to Fuzhou throughout winter 946 and spring 947. The combined forces of the Fuzhou garrison and Wuyue army defeated the Southern Tang in the Battle of Fuzhou. Subsequently Fuzhou joined the Wuyue domain as a vassal. The Wuyue participated in the Later Zhou invasion of the Southern Tang. In 956 armies were sent capture Changzhou Xuanzhou. Changzhou was put under siege but the Wuyue army suffered heavy losses against a Southern Tang relief force. This defeat made the Wuyue army sent against Xuanzhou retreat before reaching the city. The Wuyue did not try attacking the Southern Tang again until 958 when Later Zhou victory was apparent. 20,000 troops were sent to assist in the final stages of the campaign.

Li Yu pleaded for military assistance from Qian Chu At the beginning of the Song conquest of Southern Tang. The Wuyue ruler instead forwarded the letter to Emperor Taizu. Quan Chu joined his suzerain in attacking the Southern Tang. Changzhou and Runzhou were seized. Wuyue forces joined the Song siege of Jinling.

Chu

To secure his uncertain position Ma Xi'e became a vassal of the Southern Tang in 951. Bian Hao and a 10,000 strong force was sent to the Chu capital of Tanzhou. Ma Xi'e invited them into the city but was deposed in December 951. The majority of Chu territory was now in Southern Tang possession. It was argued by officials that Bian Hao needed to be replaced due to his incompetency or the former Chu realm would be lost Li Jing however took no heed. Liu Yan gathered a coalition of former Chu troops and launched attacks on Southern Tang positions across Hunan. Bian Hao fled Tanzhou on 1 December 952. Liu Yan submitted to the Later Zhou in order to protect against a potentially revanchest Southern Tang. Thus Li Jing's effort to control Hunan ended in an embarrassing rout.

Southern Han

The Southern Han sent envoys in 940 to reconfirm agreements made with Southern Tang. In 941 the Southern Han proposed for the partition of the Chu realm. However Li Bian was unwilling to commit to the enterprise.

The same year they sent gifts to celebrate Li Bian's birthday.

Taking advantage of the Southern Tang invasion of Chu, in winter 951 Liu Sheng launched a successful invasion to secure Lingnan. The Southern Tang counterattack ended in failure and the Southern Han secured their territorial gains.

Liao dynasty

The Khitan were an important partner for the Southern Tang. Positive relations were used to counter the threat posed by the Central Plains regimes and their Wuyue vassal. Dialog and gift exchanges were frequent during Li Bian's rule. He sent ambassadors to the Khitan court at Shangjing to announce the start of his reign. In correspondence Yelü Deguang and Li Bian referred to each other as brothers. This demonstrated the favorable opinion the Khitan held of the southern state compared to the reigning Later Tang.

In 938 both Yelü Deguang and his brother Yelü Lihu dispatched gifts to Li Bian. Later that year a group of Khitan envoys visited with an impressive herd of 35,000 sheep and 300 horses. In return for the livestock the Khitan received medicinal supplies, silk, and tea. The Southern Tang court financed a piece called "Two Qidan Bringing Tribute" by an unnamed artist in honor of these proceedings. The painting symbolized the importance put on relations with the Khitan by Li Bian.

Contact between the two states was blocked by the Central Plains regimes. Consequently a naval route was developed. Starting at Chunzhou Southern Tang ships sailed north along the coastline until the Shandong Peninsula, where ships crossed the Yellow Sea and landed at the Liaodong Peninsula. The Khitans sent six diplomatic missions to the Southern Tang between 938 and 943. In 940 Khitan envoys presented Li a snow-fox fur robe. In both 941 and 942 the Southern Tang sent three diplomatic missions to the Khitans.

After being insulted by an antagonistic Shi Chonggui, Yelü Deguang destroyed the Later Jin in 946. In early 947 he founded the Liao dynasty as Emperor Taizong after entering Bian. Shortly afterwards Taizong offered Li Jing to become the "ruler of the Central Plains." This proposal was rejected, potentially due to the Southern Tang considering themselves culturally superior to the Khitan. Receiving the Central Plains, rather than conquering it, would have left the legitimacy of the Southern Tang far from certain.

Nonetheless, Li Jing praised Taizong for dethroning the Later Jin and petitioned him to allow the Southern Tang to repair the dilapidated Imperial Tang tombs of Chang'an. The request was denied and greatly infuriated Li Jing who then ordered meetings to formulate an invasion of the Central Plains. Han Xizai advised the Southern Tang Emperor to capture Bian at this time:

Despite the motions made by the Khitan in founding an imperial dynasty, they treated the conquest as a "very large scale raid." Taizong soon departed for the Khitan homeland in March 947 and died on the journey Meanwhile the Southern Tang were embroiled in a war of conquest against Min. This left them unable to effectively pursue a northern invasion. The campaign ended successfully late in 947. By this point however Liu Zhiyuan had already captured Bian from the Khitan and founded the Later Han dynasty. The opportunity to move against the north had been missed by the Southern Tang.

Efforts by the Southern Tang to secure an alliance with the Liao against the northern dynasties continued to flounder. In 948 Liao and Southern Tang officials formulated a joint attack against the Later Han. Yet the Liao delayed for over a year. Once they did attack the Later Han, Khitan forces only raided Hebei.

When Muzong took the Liao throne, securing aid became more difficult for the Southern Tang. He was far less interested in participating in Chinese affairs than his predecessors.

In 955 the Later Zhou began a campaign to subdue the Southern Tang. Li Jing requested military intervention by Muzong.

His brother-in-law was sent to Tanzhou as an envoy to the Southern Tang in 959. The Liao were treated to a sumptuous feast by their Southern Tang hosts. Spies loyal to the Later Zhou were among those present. Muzong's brother-in-law was beheaded by the Later Zhou spies. The Liao court was unaware that the Later Zhou perpetrated the murder. Muzong furiously revoked all contact with Li Jing, ending Liao-Southern Tang relations.

Goryeo

In 936 Taejo united the Korean Peninsula under Goryeo. The newly formed state bordered the Khitans. The Later Jin reigned as a Khitan vassal which made them undesirable to the Koreans. The strategic position of Goryeo was likely valued by the Southern Tang as a means to threaten the Khitan. Taejo sent a tribute mission to the Southern Tang in the summer of 938. A variety of locally produced goods were presented to Li Bian. Another mission from the Korean Peninsula arrived at Jinling in 938. The group was likely private traders from the recently conquered Silla. A later mission from Goryeo brought more goods as tribute in 940.

Decline

By the close of Li Jing's reign the Southern Tang was well on the way to obscurity. He had pursued a number of foreign adventures managed by incompetent military officers that generally ended in costly disaster. From 955 to 988 the Later Zhou successfully campaigned against the Southern Tang. Li Jing was forced to cede all prefectures north of the Yangtze River and become a Later Zhou tributary. The realm became territorially truncated and lost the economic and political relevance it enjoyed when Li Jing assumed the throne 15 years earlier.

In February 960 Zhao Kuangyin deposed Guo Zongxun and established the Song dynasty as Emperor Taizu. Li Jing quickly sent envoys to confirm his loyalty and vassalage to Taizu. Taizu pursued an expansionist agenda to unite China under his rule. Jiangnan was not a tactical priority compared to other states and was left alone in return for considerable tribute. In August 961 Li Jing died and his son Li Yu took over.

Li Yu kept a semi-independent status but came at a steep price of consistent tribute of gold, silver, and silk. Jiangnan was significantly smaller than the Southern Tang territorial apex achieved in the 950s. This made the large quotas demanded by the Song challenging to meet. In 964 the Song decreed new economic regulations that made the situation even more dire. Northern merchants were forbidden travel into Jiangnan. New commodity taxes were imposed in Jiangnan that could only be paid in gold or silver.

The Later Shu were crushed in 965 by Taizu.

In 971 the Southern Han were likewise conquered by the Song. Taizu now turned his attention to Jiangnan. Throughout 973 and 974 Li Yu was repeatedly summoned to the Song court. He feigned illness and claimed to be unable to make the trip. Tired of these excuses, Taizu raised an invasion force under the command of Cao Bin to extinguish Jiangnan.

The campaign began in November 974 and proceeded favorably for the Song. The Yangtze River was overcome with a floating bridge built across from Caishiji. Song forces crossed the waterway and secured a bridgehead. Outside Caishiji an army of 20,000 Jiangnan troops was defeated by Cao Bin. Song forces continued to advance and reached the outskirts of Jinling in March 975. No defensive preparations were made by Li Yu. Both he and his court officials foolishly felt existing fortifications were adequate enough to keep the Song at bay. Starting in April the capital was put under siege by Cao Bin.

In January 976 Li Yu surrendered outside his palace. He and his remaining courtiers kneeled down at the feet of Cao Bin. The deposed ruler reached Bian in February.

The imperial portrait of Li Bian produced by Zhou Wenju was presented to Taizu. This measure signified the complete submission of Jiangnan to the Song. Jiangnan was formally annexed and dissolved by the Song. The newly incorporated territories had 650,565 registered families. Lu Jiang acting Military Governor of Zhaowu Circuit continued to resist Song army after seizing She Prefecture before persuaded to surrender; Jiangnan general Hu Ze who was stationed at Jiang Prefecture refused to surrender to Song and continued to resist until his failure in May. In 978 Li Yu died probably from actual illness, rather than being poisoned on the command of Taizu as some accounts claim.

Historiography

Song historians tended to favor presenting the Five Dynasties as passing on the mandate of heaven in a linear fashion to the succeeding dynasty. The Song were at the end of this process, gaining the mandate from the Later Zhou. This logic, which did not factor the Southern Tang or other states, was critical to Song claims of legitimacy. Other states of the period like the were seen not in possession of the mandate and therefore entirely illegitimate. Song histographers likewise disregarded the Southern Tang and its potential "as a southern alternative to empire building."

The Jiu Wudai Shi was released in 974 and is the earliest work to deal with the Southern Tang. It was composed to justify Song political pretensions. Li Yu still ruled as a vassal of Taizu and so was excluded from the work. The Southern Tang was denounced as a state of "usurpation and thievery" or jianqie 僭竊. Rulers were generally referred to using the word 偽 to label them as swindlers. Despite these ideological attacks, the work accurately recorded political events between the Central Plain dynasties and the Southern Tang.

The Jiangnan lu 江南錄 was written on the order of Emperor Taizong, the successor and younger brother of Taizu. He had a keen interest in the Southern Tang, whose final ruler Li Yu had been dethroned at the beginning of 976. Southern Tang governmental documents remained unprocessed when Taizong ascended to the Song throne later that year. Li Yu was posthumously granted the title prince of Wu (吳王) by Taizong in 978. This was the same title once held by Li Ke, the supposed ancestor of the Southern Tang house. Taizong probably saw it possible to claim to be the legitimate successor of the Tang through transmission from Li Yu and the Southern Tang.

The Jiangnan lu was drafted by Tang Yue (湯悅) and Xu Xuan, both prominent members of the former Southern Tang government, to further the goal of connecting Taizong to the Southern Tang. It likely didnot achieve more than a minor circulation. By the 980s Taizong was more firmly in power and the text its significance as a source for him to claim legitimacy. The Jiangnan lu has been lost besides several passages existing in largely hostile sources. Xu Xuan was criticized by various scholars of the era for incorrectly depicting events that occurred in the Southern Tang. The author of the Diaoji litan accused Xu Xuan of blaming other officials for his own ruinous policies. The Jiangbiao Zhi by Zheng Wenbao and the Jiangnan Bielu by Chen Pengnian both in a partisan manner to fix these supposed errors. Later historians like Wang Anshi and Ouyang Xiu likewise critiqued the Jiangnan lu. Hostility to Xu Xuan by other Song historians likely came from a combination of his social prominence and prior service to the Southern Tang.

The Diaoji litan 釣磯立談 was composed by a private citizen of the Southern Tang after its conquest by the Song. In the work the author defended the legacy of the Southern Tang. The Tang-Song interregnum was conceived as a period where competing states potentially had a limited mandate of heaven. They called the Southern Tang a "peripheral hegemonic state" 偏霸. An account was given of the Southern Tang geopolitical position and its plans for unifying China. By utilizing this terminology and logic the author disputed the negative status given to the Southern Tang by Song historians.

The Zizhi Tongjian is an authoritative historical text published in 1084 that remains an important source for Chinese historiography. Sima Guang oversaw and edited the compilation that covered 1,300 years of Chinese history. Leaders of the southern states that claimed the title of emperor were instead referred to as "ruler" (主). The final chapters of the Zizhi Tongjian deal with the Southern Tang. They provide significant amount of information about the state. Sima Guang opined that conquering the north was beyond the capabilities of the Southern Tang. Contemporary scholars have noted that the personal biases of Sima Guang at times removed a sense of objectivity in the text. The ideological stances of the Zizhi Tongjian greatly influenced subsequent Song historiography, and are still prominent in modern scholarship.

The Wudai shiji largely followed the Zizhi Tongjian in its treatment of the Southern Tang. However the work has been seen as less accurate by contemporary scholars. In the work Ouyang defined the histographical concept of the Ten Kingdoms (十國). He also wrote a treatise on political legitimacy, determining that the principal factor lay in controlling a unified Chinese state. He laid out how to determine the legitimacy of a regime without necessarily giving into personal or cultural biases.

He postulated that there were interregnums where no authority was necessarily legitimate.

In 1355 Yang Weizhen wrote an essay critiquing the recently published Song shi. In it he questioned the prevailing belief that the Southern Tang were not a legitimate political entity. He recorded statements from Taizu and Qubilai that supposedly demonstrated the importance of controlling Southern China to acquire political legitimacy. Neither quotation appears in any other historical sources, making them of doubtful authenticity.

"Five Demons"

The Song political experiences influenced the depiction of the Southern Tang in their historical works. During the reign of Emperor Zhenzhong a group of financial and political reformists were derided as the "Five Demons" by opposing interest groups. This designation was later employed by Song historians to describe xiaoren 小人 officials that made a faction to illicitly gain power in the Southern Tang government. Membership in this ostensible group varies somewhat between the sources. It was however almost always affiliated with Song Qiqiu in some capacity. The existence of this supposed faction has been critiqued by Johannes Kurz as a product of the personal biases of Song historians and their deliberate rearrangement of historical materials.

The Diaoji litan was the first work to employ the term. The claimed members of this group were Song Qiqiu, Chen Jue, Feng Yanji, Feng Yanlu, and Zha Wenhui 查文徽. While some men included did act for self-aggrandisement there is not an obvious reason to consider them operating as a cohesive unit.

Ma Ling detailed eight men operating as a faction; Song Qiqiu, Chen Jue, Li Zhenggu 李徵古, Feng Yanlu, Feng Yansi, Wei Cen 魏岑, and Zha Wenhui. The Jiangnan Yeshi depicted Song Qiqiu as starting as an honest official that eventually became corrupt. Notably he is not recorded as affiliated with any supposed political faction nor that he established one. In the Wudau Shiji Wei Cen replaces Song Qiqiu as a member of the Five Demons, although the latter reportedly controlled the group through Chen Jue. This purported arrangement was also reported in the Zizhi Tongjian.

Rulers

Southern Tang and Wu rulers family tree

– Wu emperors; – Southern Tang emperors

Citations

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