Zhu Di has made many great achievements in his career. In the eyes of many people, he was a very despicable emperor, but his throne was not honorable. His father, Zhu Yuanzhang, did not pass the throne to him, but to his nephew. Therefore, Zhu Di was dissatisfied with Zhu Yuanzhang's approach and his nephew's policy of cutting down the domain step by step, which led to Zhu Di's rebellious ideas.
From Beijing to Nanjing, Zhu Di was more effective than his nephew because he fought in the north for many years. In the end, he went all the way to Nanjing and took the throne of his nephew, and posterity praised him differently. But his achievements are truly unmatched by anyone else.
In the face of foreign invasions, he marched to the north of the desert five times, becoming the first emperor in history to be called Wolf Juxu. In terms of culture, he ordered people to compile the Yongle Canon, which became the largest encyclopedia of the Ming Dynasty. There's everything in it, including all sorts of valuable knowledge from antiquity to modern times.
Diplomatically, he repeatedly ordered Zheng He to go to the West to establish diplomatic and trade relations with many countries outside the Central Plains, publicize the national prestige of the Ming Dynasty, and make many countries outside the Central Plains yearn for the Ming Dynasty. In terms of national defense, in order to prevent foreign aggression from the north, he directly moved the capital Nanjing to Beijing. If there is foreign aggression from the north, he can defend and destroy the north at the first time. Later generations also called it the Protector of the Kingdom.
During his reign, he did not cede land or pay compensation. Faced with the arrogant attitude of foreigners, he solved the problem by force. It can be said that in Chinese history, he was a more strict emperor. But when he became emperor, he did not give birth to a son until his death.
Later, the sons who succeeded him to his position were all born before he became emperor, which made people wonder why they had no children after becoming emperor? Didn't ancient emperors have as many children as possible?
According to many folk rumors, some people believe that Zhu Di is a great demon in power, so he will be cut off when he ascends the throne. However, this statement is superstitious, but it can be seen that people despise Zhu Di's usurpation of the throne. Zhu Di was in middle age when he gave birth to his last son. It is reasonable that he cannot have children at this age.
Before that, he had nine children. Normally, he should still be fertile, but why did he have no offspring after he became king? What is the secret? When Zhu Di gave birth to his last son, his brother Zhu Biao died in the same year. After the death of the crown prince, Zhu Yuanzhang had to choose a new heir. At that time, Zhu Di was very competitive among Zhu Yuanzhang's sons.
Because he had been fighting abroad for many years, his personality was very similar to that of his father Zhu Yuanzhang, and he was also a candidate for the emperor, but who knew that Zhu Yuanzhang did not leave the throne to him, but to his nephew Zhu Yunwen. Zhu Di was very disappointed in this, but his nephew inherited the throne, and he could not persuade his father to reconsider.
However, after Zhu Yunwen ascended the throne, he began a policy of reducing the number of vassal ships. Faced with the pressure of his nephew step by step, Zhu Di decided to rebel and later inherited the throne of his nephew. However, usurpation was reprehensible in ancient times, so the most important thing after Zhu Di came to power was to change people's perceptions and make his people trust him. Therefore, after Zhu Di took office, he began several Northern Expeditions. After many years of the Northern Expedition, he certainly did not have time to consider fertility.
Second, some people think that Zhu Di may not have fertility after becoming emperor. After becoming emperor, Zhu Di was very fond of a Korean woman named Quan Fei, but the woman died of illness, and another princess told Zhu Di that Quan Fei's death was related to an official, Lü Shi, so Zhu Di was very angry and killed many people.
Conclusion: Later, he heard that Jia Lu had an affair with the eunuch, and Zhu Di was even more angry. Therefore, after forcing Jalu and the eunuch to die, he began to clean up the harem. Many palace ladies, whether biological or non-biological, were slaughtered by Zhu Di. Many people believe that Zhu Di has no fertility at this time, so the concubines in the palace will have relations with the eunuchs.
However, this view can only be guessed by this matter. Whether this is the case is unclear. In fact, it is more because Zhu Di was busy with political affairs after he ascended the throne and often participated in wars. In the end, Zhu Di died in the war. It can be seen that during the Northern Expedition, Zhu Di consumed a lot of energy, and Zhu Di also had offspring, of course, we will not consider the issue of fertility.