During the Changxing era (930-933) of the Later Tang emperor Li Siyuan, An Chongrong served as a military commander at Zhenwu (which was then headquartered in modern Shuozhou).
In 936, Shi Jingtang (Li Siyuan's son-in-law), the military governor of Hedong Circuit (河東, headquartered in modern Taiyuan, Shanxi) rebelled against then-emperor Li Congke (Li Siyuan's adoptive son) [REF].