馬忠
Zhang Biao was a famous scholar whose reputation for refinement surpassed Ma Zhong. Yet with the possible exception of Li Hui, Ma Zhong was the most popular area commander for Shu-Han's southern lands. Yan Yu showed ability and was successful as a commander while being diligent and conscientious in the civil affairs. Along with Zhang Biao, they were in charge of administering the south after Ma Zhong's death however their authority and merits both never reached those of Ma Zhong.