 One day, he informed Empress Dowager Hu that he would take Gao Yan hunting the next morning.Just after midnight, he sent messengers to summon Gao Yan, and while Gao Yan was suspicious, he headed for Gao Wei's palace—and on the way, he was seized by Liu and suffocated.He was buried inside Daming Palace (大明宮), and while he had four posthumous sons, they were all executed after their birth.