Wu Chengsi
In 686, fearful of the general Li Xiaoyi (李孝逸) -- a member of the imperial Li clan who had defeated the anti-Empress Dowager Wu rebellion led by Li Jingye the Duke of Ying in 684—Wu Chengsi made false accusations against him, and in response, Empress Dowager Wu demoted Li Xiaoyi. In 687, Wu Chengsi further accused Li Xiaoyi of having made comments that he would be emperor one day, and Empress Dowager Wu had Li Xiaoyi exiled to Dan Prefecture (儋州, modern Danzhou, Hainan), where he died in exile.