 Wang and Chen Baxian initially wanted to make Emperor Yuan's son Xiao Fangzhi the Prince of Jin'an emperor, but after military pressure from Northern Qi, in summer 555, Wang agreed to make Northern Qi's favored candidate Xiao Yuanming (Emperor Yuan's cousin) emperor instead—a decision that Chen disagreed with.In fall 555, he made a surprise attack on Jiankang, killing Wang and deposing Xiao Yuanming, making Xiao Fangzhi emperor instead (as Emperor Jing).In 557, he had Emperor Jing yield the throne to him, establishing Chen Dynasty as its Emperor Wu.