Xiahou Ba
During one of Jiang Wei's campaigns against Cao Wei in the north, Xiahou ba surrenders to the Shu kingdom. The reason for the surrender was that Sima Yi orchestrated a coup d'etat against Cao Shuang, the regent of Cao Wei, so Xiahou Ba was opposed to serving the Sima clan. The Xiahou clan that served the Cao clan for many decades surrenders to the enemy of its ancestors.