《史记·三十世家·卫康叔世家》
十六年，州吁聚集卫国逃亡的人袭击并杀死桓公，州吁自己立为卫国国君。
十六年，州吁收聚卫亡人以袭杀桓公，州吁自立为卫君。
In the sixteenth year, Zhou Yu gathered together fugitives from the State of Wei and attacked and killed Duke Huan, and established himself as the Duke of Wei.