Hou, believing that his days of power might be numbered, wanted to become emperor. Meanwhile, Wang had disputes with Emperor Jianwen's daughter Princess Liyang, and believing that she would eventually harm him, persuaded Hou that he should remove the emperor to show off his power. In fall 551, Hou deposed Emperor Jianwen and demoted him back to the title of Prince of Jin'an, and made Xiao Huan's son Xiao Dong the Prince of Yuzhang emperor. Hou had all of Emperor Jianwen's sons who were under his control, including Xiao Daqi the Crown Prince, executed. (He soon regretted these actions, and considered restoring Emperor Jianwen to the throne and making Xiao Dong crown prince, but Wang persuaded him not to do so.) He put Emperor Jianwen under house arrest.