Sub-Wei is the son of Duke Zhuang of Zheng, Zheng Li Zheng Zhaogong suddenly and suddenly all public child Men's brother. Men's successor, sub-sub-infant compared to his brother. Sub-Wei and Qi Xianggong meeting failed to apologize about the past. Qi Xianggong angry, ambushed and killed him. So Ji Zu Ying Li infant son to the throne. At that time the wisdom of the people that made him Mianhuo Jizu.