First, cutting the vassal was a measure to strengthen centralization in Wen Jian. The prince immediately launched a mutiny after receiving the news, which showed that he was ready for rebellion. The Prince of Yan launched the battle of Jingnan. What did he type on the surface? Jun Qing? Slogan to safeguard the interests of the captaincy, but this reaction is too fast. His decision has just been made, and the prince has just received the news from Kyoto. The prince's army has been assembled and ready to go, so this is premeditated. Judy herself coveted the throne, and he had already made preparations for rebellion. He only needed one chance, and cutting the vassal was the opportunity he was waiting for.
Second, the prince, as Zhu Yuanzhang's own son, felt that the throne should not be passed on to Zhu Yunwen beyond him. Judy actually wanted to compete for the throne when Zhu Yuanzhang was still alive, but Zhu Yuanzhang was stubborn. His eldest son Zhu Biao died, and the throne should have been inherited by the descendants of Zhu Biao. Therefore, before he died, he killed many founding heroes for Zhu Yunwen, so that the throne of his descendants was not threatened, and even sent many monks to vassal States around the world to warn his sons to keep their duties. However, I didn't expect Yao Xiaoguang, a monk who was given to the prince, to be a restless factor.
Third, after the prince breached the Daming Capital, he killed all the people who had direct relations with Zhu Yunwen. The prince of Yan launched the battle of Jingnan for the throne, which can be seen from his reaction after he entered the capital. After Judy attacked the capital, she killed Zhu Yunwen's brothers and sisters and their children, as well as Zhu Yunwen's wives, mothers and children. Zhu Yunwen and his prince also set themselves on fire and died. Finally, the only one alive was Zhu Yunwen's two-year-old son, but he was imprisoned in a high wall for the next 55 years. Nobody taught him, and he lived like a basket case. If Judy really didn't do it for the sake of the throne, then he didn't have to do it, and Judy did so much for the sake of the throne.