Guo Chongtao
After Later Liang's fall, Dong Zhang (as did virtually all other Later Liang-commissioned regional governors) went to Daliang to pay homage to the Later Tang emperor. Li Cunxu had long heard of Dong, and treated him well, returning him to his post at Ze. In 924, he was part of the Later Tang deployment in the northern boundary with the Khitan Empire to defend against possible Khitan incursions. Overall, Dong served at Ze for more than a year there before being replaced and recalled to then-Later Tang capital Luoyang. At that time, the paramount figure at court was Li's chief of staff Guo Chongtao, and Guo treated him well as well. In the summer of 925, Dong was first made acting military governor of Jingnan Circuit (靜難, headquartered in modern Xianyang, Shaanxi), and shortly after made its full military governor.