Emperor Gao of Southern Qi - Under Emperor Shun of Liu Song

Under Emperor Shun of Liu Song

Xiao Daocheng made Emperor Houfei's brother Liu Zhun the Prince of Ancheng emperor (as Emperor Shun). In response, the general Shen Youzhi arose with the troops of his Jing Province (荊州, modern central and western Hubei), accusing Xiao of wanting to usurp the throne. Yuan Can and Liu Bing also believed that that was Xiao's intent, and, as Xiao prepared for a campaign against Shen, secretly planned another uprising within Jiankang to overthrow Xiao. However, Yuan, believing that the plot would not succeed without Chu Yuan's support, told Chu of the plot as well, and Chu, who was friendly with Xiao, quickly informed Xiao. Yuan, not aware of this, continued his preparations, aligning with a number of generals and preparing to rise. However, Liu Bing panicked during the preparation stage, and fled to Yuan's defense post at the fortress of Shitou Cheng several hours in advance of the scheduled time, alarming Xiao and allowing him to further start a counterinsurrection, arresting and killing several generals aligned with Yuan and Liu Bing before they could act. Xiao's troops then sieged Yuan's defenses at Shitou, killing Yuan and Liu Bing.

Meanwhile, the provincial governors that Shen invited to join him all declined and either resisted him or stood by. Shen nevertheless had a strong army, and the imperial army generals were apprehensive about facing him. He initially progressed quickly toward Jiankang, but as he went past Yingcheng (郢城, in modern Wuhan, Hubei), he was provoked by insults of Liu Shilong (柳世隆), the chief of staff for Liu Zan (劉贊) the Prince of Wuling and governor of Ying Province into stopping and putting the well-fortified Yingcheng under siege.

In 478, with his forces unable to capture Yingcheng, Shen Youzhi's soldiers began to desert. Shen then aggravated the situation by imposing severe punishments on the commanding officers of deserting soldiers—which in turn caused them to desert. Shen's officer Liu Rangbing (劉攘兵) then surrendered to Liu Shilong, causing his forces to collapse. He tried to retreat to Jiangling (the capital of Jing Province), but by the time he did so, Zhang Jing'er, whom Xiao had made the governor of Yong Province (雍州, modern southwestern Henan and southwestern Hubei) with the intent of having him attack Shen from the rear, had already captured Jiangling and killed Shen Yuanyan, whom Shen Youzhi had left in charge of Jiangling. Shen's remaining army, seeing that Jiangling had fallen, collapsed, and he initially tried to flee, but realizing that his escape route had been cut off, committed suicide. Xiao was now without substantial opposition, particularly after he killed Huang Hui, who had been implicated in conspiracies with Liu Jingsu and Yuan Can earlier, later that year after Huang showed signs of insubordination. He began to put his sons into important posts as well. He also engaged the nobly born official Wang Jian as a key assistant and, with Chu's tacit agreement, started making moves toward the throne, including quietly assassinating Emperor Houfei's brothers. In 479, over a brief time span of two months, he had Emperor Shun create him the Duke of Qi, and then the Prince of Qi, and bestow him the nine bestowments, all progressive steps toward the throne. In summer 479, he forced the fearful Emperor Shun into yielding the throne to him, ending Liu Song and starting Southern Qi, as its Emperor Gao.