In 908, by which time Tang's last emperor Emperor Ai had been forced to yield the throne to Li Keyong's archrival Zhu Quanzhong, who established a new Later Liang as its Emperor Taizu but whose legitimacy Li Keyong refused to recognize, Li Keyong died.
Li Cunxu subsequently wage a 15-year campaign against Later Liang's Emperor Taizu and his son and successor Zhu Zhen, gradually seizing all of Later Liang's territory north of the Yellow River.