Cao Xi

Cao Xī, (Chinese曹 羲, Pinyin Cao Xī, Ts'ao Hsi W.-G.; † 249) was the second son of Wei general Cao Zhen and the younger brother of Cao Shuang. Cao Xi advised his overbearing older brother often, to make Sima Yi in eight, who then laid claim to the regency. Both, Shuang Xi and were, however, executed by Sima Yi's coup 249.