In 951, Emperor Taizong's cousin Yelü Chage (耶律察割) mutinied and killed Emperor Shizong in a coup. Empress Zhen was also killed, probably on the same day, as Empress Xiao Sagezhi was specifically indicated to have been killed on the next day. After Yelü Xian became emperor in 969, he buried both Empresses Zhen and Xiao at Yiwulü Mountain, and built a temple dedicated to them.