Zhu Yong's "Old Palace" records: After Zhu Di ascended the throne, Zhu Yunwen's son, two-year-old Zhu Wenkui, became the youngest. Zhu Di paid special attention to the Ministry of Punishment and was only allowed to feed him and not teach him to speak. Fifty-five years later, Wenkui was released. People were surprised to see that the former prince had become a waste that could only breathe.