Wei Guan
Sima Liang and Wei Guan had reservations about Sima Wei's ferocity in overthrowing Yang, and they therefore tried to strip him of his military command, but Sima Wei persuaded Empress Jia to let him keep his military command. Sima Wei's assistants Qi Sheng () and Gongsun Hong () thereafter falsely told Empress Jia that Sima Liang and Wei Guan planned to depose the emperor. Empress Jia, who had already resented Wei for having, during Emperor Wu's reign, suggested that he change his heir selection, also wanted more direct control over the government, and therefore resolved to undergo a second coup.