李承乾
Around the new year 645, Li Chengqian died at Cheng Prefecture. Emperor Taizong ordered that he be buried with the honors due a duke. After Li Chengqian's grandson Li Shizhi became chancellor during the reign of Li Chengqian's grandnephew Emperor Xuanzong, he often spoke to Emperor Xuanzong in defense of his grandfather. In 736, Emperor Xuanzong posthumously honored Li Chengqian the Prince of Hengshan—a title that he previously held—and gave him the posthumous name of Min (愍, meaning "suffering").