 During the time that Li Baochen served as military governor, Li Weiyue served as commander of the forces (行軍司馬, "Xingjun Sima") as well as the prefect of Chengde's capital prefecture Heng Prefecture (恆州).Li Weiyue was considered young and weak in personality, so, as Li Baochen aged, he began to kill a number of officers that he viewed as potential threats to Li Weiyue.The only two major officers who escaped this fate were Zhang Xiaozhong (who escaped the fate by remaining at his garrison at Yi Prefecture (易州, in modern Baoding, Hebei), refusing to return to Heng Prefecture even when Li Baochen summoned him multiple times) and Wang Wujun (whose son Wang Shizhen was a son-in-law to Li Baochen and brother-in-law to Li Weiyue).