Gao Shun
The only record of Cao Xing in history exists in the "Yingxiong Ji" (英雄記; "Records of Heroes"), which stated that when Hao Meng rebelled against Lü Bu in 196, Hao's subordinate Cao Xing refused to join him in the rebellion. Hao Meng and Cao Xing fought, and Cao was injured by Hao but he managed to slice off Hao's arm. Hao Meng was later killed by Gao Shun. Lü Bu later praised Cao Xing for remaining loyal to him.