Emperor An of Jin

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Emperor An of Jin : biography

382 – 419

Campaigns against Western Shu and Later Qin

With the state having been stabilized after Lu Xun’s destruction, Liu Yu again turned his attention outward, hoping to use military victories to propel himself into sufficiently high public standing that he can take the throne for himself. At the same time, however, he began to remove members of his coalition who stood or might stand in his way. In 412, believing that Liu Yi, then governor of Jing Province, was about to act against him along with Liu Yi’s cousin Liu Fan (劉藩) the governor of Yan Province (兗州, then modern central Jiangsu), he arrested Liu Fan and his friend Xie Hun (謝混), and then made a surprise attack against Liu Yi, defeating Liu Yi’s forces easily. Liu Yi was killed in flight. In 413, Liu Yu also surprised and killed his assistant, the general Zhuge Zhangmin (諸葛長民), whom he suspected of considering to act against him when he was away from Jiankang attacking Liu Yi.

Meanwhile, in late 412, Liu Yu commissioned the general Zhu Lingshi (朱齡石) to attack Qiao Zong’s Western Shu, secretly instructing him to take the long route to Qiao Zong’s capital Chengdu by Min River (岷江), rather than the short route by Fu River (涪江). Zhu’s forces were able to surprise Qiao Zong’s main general Qiao Daofu and Qiao Zong himself, capturing Chengdu in 413 and annexing Western Shu back into Jin.

In 414, Liu Yu began to suspect Liu Yi’s replacement as the governor of Jing Province, Sima Xiuzhi (司馬休之), who was a member of the imperial clan and whose son Sima Wensi (司馬文思) had been created the Prince of Qiao and had gathered many adventurers around him. In spring 414, Liu Yu had Sima Wensi’s confederates arrested and executed, while delivering Sima Wensi to Sima Xiuzhi, intending for Sima Xiuzhi to show submission by executing Sima Wensi himself. Instead, Sima Xiuzhi only requested that Sima Wensi’s princely title be stripped. In spring 415, Liu Yu arrested another son of Sima Xiuzhi, Sima Wenbao (司馬文寶), and Sima Xiuzhi’s nephew Sima Wenzu (司馬文祖), ordering the two to commit suicide, and then launched an attack on Sima Xiuzhi, who was joined by Lu Zongzhi (魯宗之) the governor of Yong Province (雍州, then modern northwestern Hubei). Initially, Sima Xiuzhi and Lu Zongzhi enjoyed some successes, defeating Liu Yu’s son-in-law Xu Kuizhi (徐逵之), but after Liu Yu himself arrived, he defeated Sima Xiuzhi’s forces, capturing Jiangling and forcing Sima Xiuzhi and Lu Zongzhi to flee to Later Qin. Liu Yu now no longer had significant opposition in Jin.

In 416, Liu Yu launched a major attack against Later Qin, in light of the recent death of the Later Qin emperor Yao Xing, entrusting the capital to his assistant Liu Muzhi (劉穆之), with his teenage heir apparent Liu Yifu being nominally in charge. In winter 416, the important city Luoyang fell to Liu Yu’s general Tan Daoji (檀道濟). In light of Luoyang’s fall, Liu Yu had Emperor An create him Duke of Song and bestow him the nine bestowments, showing his intentions to take the throne eventually, although he declined both honors at that point.

In spring 417, Tan Daoji and another general, Shen Linzi (沈林子), engaged in a major campaign with Later Qin’s most prominent general, Yao Shao (姚紹) the Duke of Lu, the uncle of the emperor Yao Hong. After a month of battles, Yao Shao was defeated, and he died in anger. With Yao Shao dead, the other Later Qin generals could not resist Jin forces. Liu Yu’s fleet, commanded by Wang Zhen’e (王鎮惡, Wang Meng’s grandson), advanced quickly, while Yao Hong tried to first destroy Liu Yu’s flank forces, commanded by Shen Linzi’s brother Shen Tianzi. Despite Yao Hong’s large advantage in numbers, Shen Tianzi crushed him, forcing him to flee back to his capital Chang’an. Wang Zhen’e’s fleet then arrived and defeated Later Qin’s final resistance, entering Chang’an. Yao Hong surrendered, and Liu Yu had him delivered to Jiankang and executed, ending Later Qin.

Emperor An’s death

With Later Qin destroyed, there was an expectation that Liu Yu would next advance northwest and either destroy or force the subjugation of the several states in the northwest still — Xia, Western Qin, Northern Liang, and Western Liang. Indeed, at this point, Western Qin’s prince Qifu Chipan, Northern Liang’s prince Juqu Mengxun, and Western Liang’s prince Li Gao were all sufficiently intimidated that they nominally submitted to Jin’s authority. However, Liu Muzhi then died at this time, and Liu Yu, intending on taking the throne, decided to return to Jiankang himself, leaving his 11-year-old son Liu Yizhen (劉義真) and the generals Wang Zhen’e, Shen Tianzi, Mao Dezu (毛德祖), and the official Wang Xiu (王脩) in charge of Chang’an.