Shangguan Wan'er
Emperor Zhongzong died suddenly in 710 — a death that traditional historians believed to be a murder carried out by Empress Wei and Li Guo'er so that Empress Wei could become emperor and Li Guo'er could become crown princess. Initially, Emperor Zhongzong's death was not publicly announced, and Princess Taiping and another powerful woman, Emperor Zhongzong's concubine Consort Shangguan Wan'er, drafted a will on Emperor Zhongzong's behalf that attempted to balance the various factions — having Emperor Zhongzong's son by another concubine, Li Chongmao the Prince of Wen, take the throne, and having Empress Wei as empress dowager and regent, assisted by Li Dan. Empress Wei's cousin Wei Wen, wanting to have Empress Wei take sole power, however, modified the will to remove Li Dan as coregent. Accordingly, Li Chongmao took the throne (as Emperor Shang), while Empress Wei became empress dowager and regent.