After Zhu Biao's death, Zhu Yuanzhang selected Zhu Yunjiao as the emperor's grandson to inherit the throne. So what are the prerequisites for the throne to fall to Zhu Yunjiao?
Zhu Biao must have died before Zhu Yunjiao and Zhu Yuanzhang. His father Zhu Biao did not die, and after Zhu Yuanzhang's death, the throne naturally passed to Zhu Biao. It will not be passed directly to Zhu Yunjiao.
Zhu Yuanzhang
Zhu Yuanzhang and Zhu Biao stills
His brother Zhu Xiongying must have died before Zhu Yunjiao. Zhu Xiongying was the eldest son of Zhu Biaoyan and the eldest grandson of Zhu Yuanzhang. He was born to Zhu Biaozheng's wife Chang Shi (the daughter of Chang Yuchun, King of Kaiping Zhongwu). Therefore, if Zhu Xiongying did not die, the Emperor's grandson would definitely be Zhu Xiongying's.
As we all know, Zhu Yuanzhang (Zhu Yuanzhang, who is actually a Libra) with a serious Virgo plot, listed the characters for each son, among which the characters of the prince Zhu Biao's line were "Yunwen obeys the ancestral precepts, drinks the martial arts and wins, shuns the way yi Fengji, and the teacher is good and good at using Sheng", the reason why Zhu Xiongying did not follow this character generation is because he was born too early, and Zhu Yuanzhang has not yet set the rules for this character.
Zhu Yunjiao
3. Zhu Biaozheng's wife Chang Shi must have died before Zhu Biao. Zhu Yunjiao's biological mother Lü Shi was not a princess, so Zhu Yunjiao was only a concubine when she was born. And in addition to Zhu Xiongying, the Chang clan also gave birth to a son, Zhu Yunxi. If The Chang clan did not die, Zhu Yunxi would always be a concubine, and the throne would also be his brother Zhu Yunxi. Because Chang died before Zhu Biao, Zhu Biao took Zhu Yunjiao's mother Lü Shi as his stepfather. Zhu Yunjiao also obtained the status of concubine.
It is precisely because these three conditions are all met that Zhu Yunjiao can become the eldest grandson and eventually succeed to the throne.