太平公主
Soon, however, tensions between Princess Taiping, who had very much power and many supporters, and Li Longji mounted. Eventually, in September 712, Emperor Ruizong, believing that astrological signs called for a change of emperors, abdicated in favor of Li Longji (as Emperor Xuanzong). However, at Princess Taiping's suggestion, Emperor Ruizong, now carrying the title of "Taishang Huang" (retired emperor), continued to wield actual power. However, in 713, suspecting Princess Taiping of planning a coup, Emperor Xuanzong acted first, killing her associates and forcing her to commit suicide. After the death of Princess Taiping, Emperor Ruizong himself yielded imperial powers to Emperor Xuanzong and left the governmental scene. He died in 716.