Wu Chengsi
Wu Chengsi (Chinese: 武承嗣; Pinyin: Wǔ Chéngsì) (died July 22, 698), formally Prince Xuan of Wei (魏宣王), was a nephew of Chinese sovereign Wu Zetian and an imperial prince during her Zhou Dynasty. He participated in her planning in taking the throne and had wanted to become crown prince after she claimed the throne in 690, but his attempts were repeatedly rebuffed, and after she showed her intent to eventually return the throne to her son Li Zhe by recalling Li Zhe from exile in 698, Wu Chengsi died in disappointment.