Han Sui
Ma Chao, Cao Cao and Jia Xu's biographies all mentioned Cao Cao heeding Jia Xu's suggestion to sow discord between Ma Chao and Han Sui and turn them against each other. Cao Cao's biography gave a detailed account of this incident, which is mainly similar to the description in "Sanguo Yanyi", except that there is no mention about Ma Chao cutting off Han Sui's arm in a fight. Besides, the generals Cheng Yi, Li Kan, Yang Qiu and others were not subordinates of Han Sui, but rather, independent members who joined Ma Chao's alliance.