Yuan Xi

Yuán Xī was the second son of the warlord Yuán Shào and a military general under his father during the late Eastern Han Dynasty and Three Kingdoms era in ancient China. After he was defeated in battle against Cáo Cāo, he fled to Liaodong with his younger brother Yuán Shàng and was betrayed and killed by Gongsun Kang, governor of Liaodong, who sent his head to Cáo Cāo. His wife Zhen Luo was seized by Cao Pi and became Cao Pi's wife. He could be the father of Cao Rui, the future Emperor Ming of Wei. This was due to the fact that Cao Rui was apparently born only eight months after Cao Pi married Lady Zhen, although this appeared to be rather unlikely given that Yuan Xi had been away from for quite some time before the marriage. It was because of this that Lady Zhen eventually lost Cao Pi's favor altogether.