Emperor Wenzong of Tang (809–840), personal name Li Ang, né Li Han (李涵), was an emperor of the Tang dynasty of China. He reigned from 827 to 840. Emperor Wenzong was the second son of Emperor Muzong and younger brother of Emperor Jingzong. A rare occurrence in Chinese history, Emperor Wenzong, along with his elder brother Emperor Jingzong and younger brother Emperor Wuzong, reigned in succession.
Background Li Han was born in late 809, during the reign of his grandfather Emperor Xianzong. His father, Li You was then the Prince of Sui under Emperor Xianzong,Old Book of Tang, vol. 16. but while Li You was considered, under Confucian principles of succession, to be the proper heir to the throne, because his mother (Li Han's grandmother) Consort Guo, was Emperor Xianzong's wife and crown princess while Emperor Xianzong was crown prince,Zizhi Tongjian, vol. 238. Li You was not created crown prince for some time; his older brother Li Ning, by Emperor Xianzong's concubine Consort Ji, was.Zizhi Tongjian, vol. 237. Only after Li Ning's death in 811 was Li You, whose name was then changed to Li Heng, created crown prince in 812. Li Han was Li You's second son, being born four months after his older brother Li Zhan. His mother was Li You's concubine Consort Xiao.
In 820, Emperor Xianzong died, and Li Heng took the throne (as Emperor Muzong). In 821, Emperor Muzong created a large number of his brothers and sons imperial princes, and Li Han was created the Prince of Jiāng.Zizhi Tongjian, vol. 241. In 824, Emperor Muzong died and was succeeded by Li Zhan (as Emperor Jingzong). Around the new year 827, Emperor Jingzong was assassinated by a group of imperial guards and eunuchs, led by the eunuch Liu Keming (劉克明). Liu initially tried to have Emperor Muzong's younger brother Li Wu the Prince of Jiàng (note different tone) made emperor, but soon, a group of powerful eunuchs—the directors of palace communications Wang Shoucheng and Yang Chenghe (楊承和) and commanders of the Shence Armies Wei Congjian (魏從簡) and Liang Shouqian (梁守謙) counteracted against the conspirators, launching forces to slaughter them. Li Wu was also killed in this event. Wang and the other eunuchs subsequently had Li Han named the new emperor by orders issued in the name of his grandmother Consort Guo (who was then grand empress dowager) (as Emperor Wenzong). His name was changed to Li Ang.
Reign
Early Dahe/Taihe Era
It was said that at the start of Emperor Wenzong's reign, he, having observed the wastefulness that his father Emperor Muzong and brother Emperor Jingzong displayed in their reigns, sought to conserve, govern diligently, and meet with the officials frequently. The people thought that a peaceful time would be coming. However, it was also said that Emperor Wenzong, while humble and willing to open to suggestions, was indecisive, often changing his mind after initially agreeing to the chancellors' suggestions. At one point, the chancellor Wei Chuhou objected and offered to resign, but Emperor Wenzong did not accept his resignation. Meanwhile, Emperor Wenzong honored his mother Consort Xiao as an empress dowager, and continued to honor his grandmother Grand Empress Dowager Guo and Emperor Jingzong's mother Empress Dowager Wang as well, so there were three empresses dowager in the palace. It was said that he served them with filial piety, always offering the best of the tributes to them first.
One of the major moves that Emperor Wenzong had to make, however, dealt with war—as, at the very end of Emperor Jingzong's reign, after the death of Li Quanlüe (李全略) the military governor (Jiedushi) of Henghai Circuit (橫海, headquartered in modern Cangzhou, Hebei), Li Quanlüe's son Li Tongjie seized control of the circuit without imperial sanction, hoping to succeed his father. Initially, the imperial government took no action, and after Emperor Wenzong took the throne, Li Tongjie sent his secretary Cui Congzhang (崔從長) and brothers Li Tongzhi (李同志) and Li Tongsun (李同巽) to the capital Chang'an to pay homage to Emperor Wenzong, hoping that Emperor Wenzong would approve of his succession. In response, Emperor Wenzong commissioned Li Tongjie as the military governor of Yanhai Circuit (兗海, headquartered in modern Jining, Shandong) and transferred a former military governor of Henghai, Wu Chongyin, to Henghai. Li Tongjie decided to resist militarily, and he was supported by the warlord Wang Tingcou, the military governor of neighboring Chengde Circuit (成德, headquartered in modern Shijiazhuang, Hebei). Emperor Wenzong mobilized a number of circuits around Henghai to attack it, but could not immediately achieve success. Not until 829 was Li Tongjie defeated by the imperial general Li You (note different character than Emperor Muzong).Zizhi Tongjian, vol. 244.
In the aftermath of Li Tongjie's defeat, however, one of the other warlords of the region, Shi Xiancheng the military governor of Weibo Circuit (魏博, headquartered in modern Handan, Hebei), fearing that he would be the imperial forces' next target, offered to surrender his circuit to imperial control. Emperor Wenzong transferred Shi to Hezhong Circuit (河中, headquartered in modern Yuncheng, Shanxi) and commissioned the imperial general Li Ting (李聽) to succeed him. Before Shi could depart Weibo, however, the Weibo soldiers mutinied, killed him, and supported the officer He Jintao as their leader in resisting Li Ting. Subsequently, He Jintao defeated Li Ting, and the imperial government, with its treasury drained by the Henghai campaign, decided not to wage another war, and Emperor Wenzong allowed He Jintao to become the military governor of Weibo.
In late 829, Nanzhao, irritated by incursions by Tang's Xichuan Circuit (西川, headquartered in modern Chengdu, Sichuan) troops, who were forced to resort to raiding Nanzhao's border regions due to the reduction in salaries by Xichuan's military governor, the former chancellor Du Yuanying, made a major attack against Xichuan. The Nanzhao forces advanced all the way to Chengdu, almost capturing it. Nanzhao demanded that Emperor Wenzong take action against Du, and Emperor Wenzong exiled him and subsequently entered into a peace agreement with Nanzhao. Still, Nanzhao forces seized tens of thousands of people from Xichuan and took them to Nanzhao as captives.
830 saw the start of factionalism, later known as the Niu-Li Factional Struggles, within Emperor Wenzong's administration—as, by this point, Wei Chuhou had died, and fellow chancellor Pei Du, in his old age, had taken less of a lead on government decisions (and was eventually sent out of the capital to serve as a military governor). The succeeding chancellors Li Zongmin and Niu Sengru were considered factional figures (of the faction historians later referred to as the Niu Faction, named after Niu), and they, together, ejected allies of their political rival Li Deyu (after whom the Li Faction was later named by historians) from government. (Pei had recommended Li Deyu to be chancellor, but Li Zongmin was said to have triumphed over Li Deyu due to assistance by the eunuchs.) Meanwhile, Emperor Wenzong, tired of the eunuchs' influence over his governance and control of the palace, was secretly planning with the official Song Shenxi on how the eunuchs, particularly Wang Shoucheng, could be disarmed. To further plan this, Emperor Wenzong made Song a chancellor as well. However, when Wang and his strategist Zheng Zhu later heard about the plot in 831, they counteracted by falsely accusing Song of planning to overthrow Emperor Wenzong and replace him with his brother Li Cou the Prince of Zhang. As a result, both Li Cou and Song were exiled.
An event of major historical controversy occurred in 831. Li Deyu was then the military governor of Xichuan. Xidamou (悉怛謀), the Tufan defender of Wei Prefecture (維州, in modern Ngawa Tibetan and Qiang Autonomous Prefecture, Sichuan), had surrendered Wei Prefecture to him. Li Deyu advocated accepted Xidamou's surrender and further use it as a base to launch a major attack on Tufan. Niu, citing the peace treaty that Tang had entered with Tufan and that a Tufan attack against the Chang'an region would be devastating, advised against accepting Xidamou. Emperor Wenzong agreed and ordered Li Deyu to return Wei Prefecture to Tufan. Tufan subsequently slaughtered Xidamou and his subordinates, leading to a public outcry. (For centuries following, up to today, historians disagree over whether Li Deyu or Niu was correct.)See, e.g., Bo Yang Edition of the Zizhi Tongjian, vol. 59 and commentaries contained therein.
Late Dahe/Taihe Era
In 832, Emperor Wenzong created his son Li Yong crown prince. (Emperor Wenzong had previously planned to create Emperor Jingzong's oldest son Li Pu the Prince of Jin crown prince, but Li Pu died in 828, and it was said that Emperor Wenzong was so saddened that he waited for years before creating Li Yong crown prince.)
Also in 832, in the aftermaths of the Xidamou incident, with popular sentiment turning against Niu Sengru, Niu resigned his chancellor position to become the military governor of Wuchang Circuit (武昌, headquartered in modern Wuhan, Hubei), and Li Deyu was recalled to Chang'an, becoming chancellor in 833. Li Deyu used the opportunity to attack Li Zongmin's associates for factionalism, and many were demoted. Li Zongmin himself was soon sent out of Chang'an to serve as the military governor of Shannan West Circuit (山南西道, headquartered in modern Hanzhong, Shaanxi).
Around the new year 833, Emperor Wenzong suffered a stroke. As Zheng Zhu was a talented physician, Wang Shoucheng recommended Zheng to Emperor Wenzong, and after Zheng was able to treat Emperor Wenzong, Emperor Wenzong became close to Zheng, but it was said that from this point on, Emperor Wenzong's spirit was weakened and could not be as strong as before. Subsequently, another associate of Wang's, Li Zhongyan, also became a close associate of Emperor Wenzong's, despite Li Deyu's attempts to reject him based on his past crimes. In order to counteract Li Deyu, Zheng and Li Zhongyan advocated for Li Zongmin's return from Shannan West, to again serve as chancellor, with Li Deyu sent to Zhenhai Circuit (鎮海, headquartered in modern Zhenjiang, Jiangsu). It was said that around this time, Emperor Wenzong, exasperated at the factionalism that the Niu and Li Factions were engaging, commended, "It is easy to destroy the bandits [(i.e., the warlords)] north of the Yellow River, but difficult to destroy the factionalism among officials." Subsequently, with Li Deyu having been accused of being closely associated with Li Cou's wet nurse Du Zhongyang (杜仲陽), he was further demoted and exiled. When the chancellor Lu Sui tried to intercede for Li Deyu, he, too, was sent out of the capital to serve as the military governor of Zhenghai.Zizhi Tongjian, vol. 245.
Li Zongmin, however, would also not remain long as chancellor. He had offended Zheng by refusing to give Zheng a high-ranking post, and subsequently, when the family members of his close associate Yang Yuqing (楊虞卿) the mayor of Jingzhao Municipality (京兆, i.e., the Chang'an region) were accused of spreading rumors that Zheng was making immortality pills for Emperor Wenzong that used infant hearts and livers as ingredients, Yang was arrested and exiled. When Li Zongmin tried to intercede for Yang, he too was exiled. It was said that Li Zhongyan (whose name had been changed to Li Xun by this point) and Zheng then used the opportunity to accuse any official they did not like as factional associates of Li Deyu or Li Zongmin, having them ejected from the imperial government. Serving as chancellors, by this point, were Li Xun, Li Xun's associates Jia Su and Shu Yuanyu, and the senior official Wang Ya.