Zhang Miao
Yuan Shao was furious when he heard that Zhang Miao – whom he had a feud with – had become Lü Bu's friend. Around the time, Yuan Shao was still an ally of Cao Cao, so Zhang Miao feared that Cao would combine forces with Yuan to attack him. Besides, Zhang Miao's jurisdiction, Chenliu, was in Yan Province, which was under Cao Cao's control.