In the twenty-seventh year of Qing'an in the Su Kingdom, the second prince Feng Qiying was born to the queen Zhen, but no one knew that Zhen was so bold that she dressed the princess as a prince! In the thirty-second year of Qing'an, Zhen gave birth to the seventh prince, Feng Qiyuan. However, Zhen's body was damaged and she died three years later.
In the 42nd year of Qing'an, Emperor Chengxi passed the throne to the seventh prince Feng Qiyuan, and decreed that his brother Wei Wang Feng Qiying should be named King Nie Zheng to assist the new emperor.