Gao Cheng
Meanwhile, Gao Cheng also had a threat from within. Gao Cheng, once Gao Huan died, began to show contempt for Emperor Xiaojing, and once, when Emperor Xiaojing rebuked him for public disrespect, Gao Cheng ordered Cui Jishu to punch Emperor Xiaojing three times. Emperor Xiaojing, fearful of what might come next, formed a conspiracy against Gao Cheng. In winter 547, the plot was discovered, and Gao Cheng put the emperor under arrest and executed his coconspirators.