Xiaosi, Liu Xuan, and the generals Shen Wenji (沈文季) and Cao Hu (曹虎) in defeating Xiao Yaoguang, Xiao Baojuan soon had all of them killed as well on suspicion of plotting coups, leading to widespread sense of terror among central government officials. This led to a rebellion by the senior general Chen Xianda (陳顯達) from his post at Jiang Province (江州, modern Jiangxi and Fujian), which was quickly defeated as well, fanning Xiao Baojuan's sense of invulnerability. In fear, the general Pei Shuye (裴叔業), who controlled Shouyang as the governor of Yu Province (豫州, modern central Anhui), surrendered Shouyang to Northern Wei in 500, despite Xiao Yan's counsel against it. Xiao Baojuan sent Cui Huijing to try to recapture Shouyang. Cui Huijing, however, as soon as he left the capital Jiankang, turned his army around and marched on the capital, hoping to overthrow Xiao Baojuan and replace him with his brother Xiao Baoxuan (蕭寶玄) the Prince of Jiangxia. Cui was initially successful, surrounding Xiao Baojuan's troops inside the palace complex. However, Xiao Yi, upon hearing news of Cui's rebellion, marched troops under his command to relieve the palace siege. He routed Cui's forces, and Cui was killed while trying to escape. Xiao Baojuan made Xiao Yi the prime minister, but soon killed him as well, on 19 November 500. Upon hearing of Xiao Yi's death, Xiao Yan gathered his officers on 15 December 500 and revealed to them his intention to rebel; he officially rose in rebellion in January or February 501. Xiao Baojuan sent an army commanded by the general Liu Shanyang (劉山陽) against Xiao Yan, but Xiao Yan convinced Xiao Yingzhou (蕭穎冑), the chief of staff of Xiao Baojuan's younger brother Xiao Baorong the Prince of Nankang, who was then governor of Jing Province (荊州, modern central and western Hubei), that Liu was intending to attack both Jing and Yong Province. Xiao Yingzhou therefore entered into an alliance with Xiao Yan, and Xiao Yingzhou surprised and killed Liu, and then declared that his and Xiao Yan's intent was to declare Xiao Baorong emperor, although he did not immediately have Xiao Baorong take the imperial title. (Privately, Xiao Yan's staff was distrustful of Xiao Yingzhou and wanted to seize Xiao Baorong by force, but Xiao Yan, not willing to create a division in the coalition at that moment, concentrated on advancing east against Xiao Baojuan rather than to seize