New History of the Five Dynasties
Li Sigong died around 886 (as he died before he could launch an army against the pretender Li Yun in support of Emperor Xizong—and Li Yun's regime was defeated in 886). Li Sijian succeeded him as military governor of Dingnan, while another brother, Li Sixiao (), was given Baoda Circuit (保大, headquartered in modern Yan'an, Shaanxi). (A different and inconsistent account, contained in the "New History of the Five Dynasties", indicated that Li Sijian did not become military governor of Dingnan until 895, but that account appeared to confuse Li Sigong with another brother of theirs, Li Sijing ()