Why was Yang Shiqi imprisoned by Ming Chengzu?

At that time, Yang Shiqi was already involved in an earth-shattering battle for the throne. He had to be cautious about his words and deeds at all times. A little carelessness would lead to death, so his every day was They are all quite fearful.

Yang Shiqi has been firmly on the side of Prince Zhu Gaochi from the beginning, using his wisdom and loyalty to defeat powerful enemies, but this process is quite thrilling. At that time, the competition between Zhu Gaochi and Zhu Gaoxu had entered a fierce stage, and the political situation was extremely complicated because the emperor Zhu Di scolded the prince Zhu Gaochi. Many people were speculating whether things were going to change that day, so those who initially sided with the prince began to become restless. After all, this was a major matter involving human lives. The situation was extremely critical at that time. Zhu Di called Yang Shiqi and asked him whether the prince Zhu Gaochi had any rebellious intentions. Yang Shiqi replied to Zhu Di with his own answer. He told Zhu Di that the prince has no second thoughts at all. He is respectful and filial to you. We, as ministers, The dereliction of duty has nothing to do with the prince. Although these words may seem ordinary to us, it took great courage to say them out at the time, or at least to risk one's life. In this way, Zhu Di temporarily let down his guard against the prince, but Yang Shiqi still paid the price for his actions. He was extremely hated by Zhu Gaoxu, who ordered his men to falsely accuse Yang Shiqi. Zhu Di could not withstand their repeated incitement and finally imprisoned Yang Shiqi. In jail.