Wang Rong
In 891, after defeating imperial forces, Li Keyong decided to attack Chengde, and he initially prevailed over Chengde forces. Li Kuangwei came to Wang's aid, and Li Keyong withdrew. When Li Kuangwei and Wang jointly attacked the Hedong-held town of Yaoshan (堯山, in modern Xingtai, Hebei), in spring 892, however, Li Keyong's officer Li Sixun () defeated them and repelled their attack. Subsequently, Li Keyong and Wang Chucun jointly attacked Wang Rong, initially successful, but Wang Rong subsequently repelled them. Thereafter, Emperor Zhaozong sent special envoys to try to pacify the disputes between the four circuits, but no avail.