Zhang Xiu

Zhang Xiu ambushed Cao Cao's forces at Wancheng after Cao Cao seduced Zhang Xiu's aunt. The surprise attack killed Cao Cao's son Cao Ang, his nephew Cao Anmin, and his general Dian Wei. Zhang Xiu then allied with Liu Biao.

Zhang Xiu surrendered to Cao Cao on the advice of his strategist Jia Xu. Cao Cao accepted his submission, married Zhang Xiu's daughter to his son, and granted him a marquisate. This ended their conflict and strengthened Cao Cao's forces.

Zhang Xiu fought under Cao Cao at the Battle of Guandu against Yuan Shao. His contribution helped Cao Cao secure a decisive victory, which established Cao Cao's dominance over northern China.

Zhang Xiu died of illness during Cao Cao's campaign against the Wuhuan tribes in the north. His death removed a key general from Cao Cao's army, but the campaign succeeded in pacifying the northern frontier.