Wang Chuzhi
Also in 900, Zhu Quanzhong made a major incursion to the north, inflicting heavy losses against Liu Rengong, and also forcing the submission of two circuits which had been loosely allied with Li Keyong (Chengde (成德, headquartered in modern Shijiazhuang, Hebei), ruled by Wang Rong, and Yiwu (義武, headquartered in modern Baoding, Hebei), ruled at the time by Wang Gao, who fled in face of the Xuanwu attack and was replaced by his uncle Wang Chuzhi. It was said that by this point, all of the circuits north of the Yellow River were submissive to Zhu.