張彥
Yuan Shao's campaign might have diminished the Heishan bandits' prospects in the south, but Zhang Yan and his people continued to hold out in the northern Changshan Commandery. In 199, Zhang Yan answered Gongsun Zan's call for help as he made his last stand in the Battle of Yijing, but his bandit army did not arrive in time and thus could not save Gongsun Zan from his demise. In 205, as Cao Cao drove out the Yuan family from the region, Zhang Yan led his men to submit to Cao Cao.