Li Keyong
…Zhicheng (薛志誠), Cheng Huaixin (程懷信), and Li Cunzhang considered the Tang realm to be in such disarray due to agrarian rebellions (the chief of which was Huang Chao's rebellion), and Li Jinzhong wrote Li Keyong, encouraging him to overthrow the defender of Datong, Duan Wenchu (段文楚), who had drawn the ire of the…