杜重威
During Li Siyuan's reign as the emperor of Later Tang, Du Chongwei served as an officer in the imperial guards, and received the title of prefect of Fang Prefecture (防州 — unclear where it was, most likely in modern Liaoning, but in any case an honorary title only as that prefecture was under the control of Khitan Empire). By this point, he was married to a younger sister of the general Shi Jingtang, who was a son-in-law of Li Siyuan's.