Li Huaixian

Li Huaixian (李懷仙) (died July 8, 768) was a general of the Chinese rebel state Yan, who later submitted to and became a general of Tang Dynasty, from which Yan had rebelled. As was in the case of several other Yan generals who submitted to Tang but who had substantial army and territorial holdings, Li was allowed to retain his command and territory, semi-independent of the Tang imperial government structure, but unlike the others, he was unable to hold onto power for long and was assassinated in 768 by his subordinates Zhu Xicai, Zhu Ci, and Zhu Tao.

Read more about Li Huaixian:  Background, During Anshi Rebellion, After Anshi Rebellion