Sima Shi
In 234, Sima Shi poisoned his first wife, Xiahou Hui because she suspected that he wanted to usurp Cao Wei's power. Later, Sima Shi married another noblewoman (a daughter of Wu Zhi), but not long after they divorce. So he decides to propose a political marriage to Yang Huiyu, because she was a politicized, talented, intelligent and generous woman.