Zhu Yuanzhang summoned Mei Maxu alone before he died. What happened behind him?

At that time, Zhu Yuanzhang summoned Mei Yin alone in order to give her a testamentary edict. If someone thinks that Zhu Yunwen, the grandson of the emperor, will ascend to the throne in the future, Mei Yin can kill thieves instead of Zhu Yuanzhang. At that time, Mei Yin had 400,000 troops in his hand. When he got this testamentary edict, it showed that Zhu Yuanzhang had an object to guard against, but Zhu Yuanzhang's goal was actually very clear, that is, Mei Yin helped Zhu Yunwen against Judy, the prince of Yan.

After Zhu Yuanzhang established the Ming Dynasty, he made his eldest son Zhu Biao the Crown Prince. Zhu Biao studied hard since childhood, and Ma Huanghou received a good education, so Zhu Biao became a smart and kind person. So the prince should belong to Zhu Biao, whether he is a saint or a leader. Zhu Biao, on the other hand, was a fortune-telling prince, and he died before he could inherit the unification, which made Zhu Yuanzhang very sad. After Zhu Biao's death, Zhu Yuanzhang didn't establish a prince for a long time, because none of his governors was as outstanding as Zhu Biao.

Therefore, some ministers suggested that Zhu Yuanzhang let Zhu Yunwen be the great-grandson of the emperor, so that after inheriting the throne in the future, Zhu Biao can not only be the emperor, but also keep the throne in Zhu Biao's hands. Therefore, Zhu Yuanzhang gave up many of his princes and chose Zhu Yunwen, the great-grandson of the emperor, as his successor. However, Zhu Yunwen's knowledge and experience can't compare with his uncles for the time being. If he can get the throne only by his father Zhu Biao, I think many governors are also unconvinced.

Later, Zhu Yuanzhang was seriously ill, and after the court handed over the affairs, he called his most trusted minister, that is, son-in-law Mei Yin, alone. At that time, Mei Yin had obtained the relieving power of Zhu Yuanzhang, holding 400,000 troops in her hand. After seeing Mei Yin, Zhu Yuanzhang quietly gave Mei Yin an imperial edict. If there is a coup by rebels in the future, Main can take out the imperial edict to punish the rebels. Zhu Yuanzhang did this because he knew that Zhu Yunwen had no position in the hearts of many of his governors, and everyone was unconvinced by Zhu Yunwen, so Zhu Yuanzhang asked Mei Yin to secretly help Zhu Yunwen consolidate the throne.