"Concerned, Pei reported this to Empress Dowager Wu.She, in response, ordered Pei and fellow chancellor Liu Yizhi, as well as the generals Cheng Wuting and Zhang Qianxu, lead troops into the palace, and then issued an edict deposing Emperor Zhongzong and demoting him to the title of Prince of Luling, replacing him with his younger brother Li Dan the Prince of Yu (as Emperor Ruizong).