Li Sizhao
Later in 906, Zhu advanced north and again put Liu Shouwen under siege at Cang Prefecture. Liu Rengong sought aid from Li Keyong to try to save Liu Shouwen. Under Li Keyong's demand, Liu Rengong sent troops to join Hedong forces under Li Sizhao and Zhou in attacking Lu Prefecture, to try to recapture Zhaoyi Circuit. When the joint Hedong/Lulong forces reached Lu Prefecture, Ding, who had been mourning Emperor Zhaozong (whom Zhu had assassinated in 905 and replaced with his son Emperor Ai), surrendered Lu to them. Li Keyong made Li Sizhao the acting military governor of Zhaoyi. However, a subsequent attack by Hedong forces on Ze Prefecture was unable to capture it, and therefore only Lu Prefecture was in Hedong hands by that point.