晋王
At a time by which time Tang's last emperor [[Emperor Ai of Tang|Emperor Ai]] had been forced to yield the throne to Li Keyong's archrival, [[Zhu Wen|Zhu Quanzhong]] (who established a new [[Later Liang (Five Dynasties)|Later Liang]] as its Emperor Taizu, but whose legitimacy Li Keyong refused to recognize), in 908 Li Keyong died. Li Cunxu succeeded him as the Prince of Jin. Under Li Keyong's will, Li Keyong's brother [[Li Kening]], the [[eunuch (court official)|eunuch]] monitor [[Zhang Chengye]], Li Keyong's adoptive son [[Li Cunzhang]], the officer Wu Gong (吳珙), and the secretary general Lu Zhi (盧質) were to assist Li Cunxu in his rule. Li Cunxu initially offered the Prince of Jin position to Li Kening, but Li Kening pointed out that it was Li Keyong's will that he inherit the title, so Li Cunxu accepted that. Lady Cao thereafter was known as the Lady Dowager of Jin.