Han Sui
When Cao Cao began gathering armies with the intent of invading Hanzhong Commandery, then under the rule of Zhang Lu, Han Sui and Ma Chao suspected that it was they, and not Zhang Lu who would be attacked. The two of them gathered warlords from the western regions and went to war against Cao Cao. In the course of the conflict, however, Cao Cao managed to turn Ma Chao and Han Sui against each other. Han Sui realised that there was no hope for victory with the forces divided against each other in suspicion, and retreated once again to Liang Province. Cao Cao captured and killed Han Sui's children and grandchildren.