Xuanzong Zhu Zhanji is the eldest grandson of Ming Chengzu Zhu Di and the eldest son of Renzong Zhu Gaochi. It is said that when Zhu Di couldn't decide who would be the crown prince, this imperial grandson helped a lot. Zhu Di's country was snatched from his nephew Zhu Yunwen, so he was worried that his successor would repeat the mistakes of the past. At that time, the eldest son Zhu Gaochi was too loyal, and the second son Zhu Gaochu was most like Zhu Di. At that time, Zhu Gaoxu was relatively irritable, and he was a person who could not listen to persuasion, which was his only shortcoming. Zhu Di asked Yao Guangyuan, the advisor he relied on the most, and asked who would be the prince in the future. Yao Guangyuan cited the advantages and disadvantages of the two, and Zhu Di still couldn't decide who would be the prince. At that time, Zhu Zhanji was only two or three years old, and he was deeply liked by Zhu Di's grandfather, Zhu Di had to hold this grandson almost every day, and only let go when the child fell asleep. Yao Guangyuan had an idea and said; "Your Majesty, haven't you already made a decision? If the King of Han becomes the emperor, what will happen to your holy grandson Zhu Zhanji? Is it for King Han to pass the throne to Zhu Zhanji? Will the King of Han be willing in the future? Can the emperor's grandson Zhu Zhanji live to inherit the throne? Your Majesty, would you like to see your uncle and nephew kill each other again? Can you bear the untimely death of this holy grandson? Because of Zhu Zhanji's grandson, Zhu Di decided to set up his eldest son Zhu Gaochi as the crown prince, and determined that Zhu Zhanji was the emperor's grandson, and after Zhu Gaochi became the emperor in the future, Zhu Zhanji was the only prince. That is, the throne of Zhu Gaochi of Huorenzong was obtained with the help of this Zhu Zhanji.

But a strange thing happened, Zhu Di liked this grandson Zhu Zhanji very much, but his father Zhu Gaochi didn't like this son Zhu Zhanji very much. After Zhu Zhanji became an adult, Zhu Gaochi sent this good son to Nanjing on the grounds that Zhu Zhanji was quietly studying, and Zhu Zhanji was not allowed to come back, nor was Zhu Zhanji allowed to contact the minister. There is a folk saying that Zhu Zhanji is actually not the son of Renzong Zhu Gaochi, but the illegitimate son of Ming Chengzu Zhu Di and his daughter-in-law Zhang. In other words, Zhu Zhanji is not Zhu Gaochi's son, he should be Zhu Gaochi's younger brother, but this younger brother was born to his old father and Zhu Gaochi's wife, so Zhu Gaochi never liked this little brother.

As for whether this legend is true or not, no one knows. Because so many years have passed, all clues have been lost. However, Qin Tai knew some clues, some secrets that even Zhan Xiaoxiao and others didn't know. When he was in Qianqiu Pavilion, Qin Tai accidentally saw an ancient painting of a palace maid pouring some medicinal powder into a medicine jar. On the inscription on one side, there are faint mentions of some secrets. It turned out that soon after Renzong Zhu Gaochi ascended the throne, he decided to change the crown prince. At that time, this incident caused an encouraging reaction from the ministers, and the vast majority of the ministers were against the change of the crown prince. Zhu Zhanji also learned the news in Nanjing, and immediately sent someone to secretly contact the minister. At the same time, a batch of candied fruits with a particularly high sugar content were sent to the palace, and Zhu Gaochi had thirst and couldn't eat anything too sweet, but it was sent by the prince, so it was not strictly investigated. Renzong Zhu Gaochi fell ill immediately after eating it, and a palace maid who was bought by Zhu Zhanji was the killer move. She put a medicine that shouldn't have been in Renzong Zhu Gaochi's medicine, which led to Renzong Zhu Gaochi's death. Zhu Zhanji successfully succeeded to the throne and became Emperor Xuanzong. In other words, Renzong Zhu Gaochi was killed by his own son Xuanzong Zhu Zhanji. In this way, it is really possible that Zhu Zhanji is Zhu Di's illegitimate son.

However, in terms of Zhu Zhanji's ability to govern, he is not a mediocre talent. He is a little more relaxed than his grandfather Ming Chengzu Zhu Di, and a little tougher than his father Renzong Zhu Gaochi. During his eleven years of reign, there were basically no major events. The only thing that affects future generations is to reward and consolidate the East Factory, which gradually replaced Jinyiwei and became the most terrifying spy agency.

Yingzong Zhu Qizhen is the eldest son of Xuanzong Zhu Zhanji, so he is the crown prince. But about Zhu Qizhen's life experience, everyone has different opinions. Some people say that he was born to the queen, and some say that he was born to the most favored Sun Guifei, but some people say that Zhu Qizhen was born to an unknown palace maid. Zhu Zhanji not only favored Sun Guifei, but also was a little afraid of Sun Guifei. Once Zhu Zhanji met a beautiful palace maid, he secretly had a relationship with her. Unexpectedly, this palace maid had a secret knot and gave birth to Zhu Zhanji's first son. But Zhu Zhanji is over 30 years old and always has no children under his knees, so he is worried about the issue of heirs. After the child is born, it immediately becomes the target of everyone's attention. But some people doubt that this child is Zhu Zhanji's, so the child's biological mother proved her loyalty by dying. Zhu Zhanji even ordered that no one should doubt Zhu Qizhen's background. When Zhu Qizhen was nine years old, Zhu Zhanji died, and he became the emperor. In order to let everyone stop talking about the emperor's origin, it was announced that Zhu Qizhen's biological mother was the queen, that is, the current queen mother. Not only that, but also set Zhu Qizhen's era name as orthodox, which means the meaning of authentic successor.

Zhu Qizhen has not been close to the Queen Mother since he was a child, and he has not been cared for by his relatives. The person he likes the most is his playmate and teacher Wang Zhen. Wang Zhen is a depressed person, who used to read poetry and books when he was young, but he always couldn't get what he wanted. Wang Zhen simply gritted his teeth and became a eunuch, hoping to get ahead. Unexpectedly, he has not been valued by Xuanzong Zhu Zhanji and has become an unambitious eunuch. Until Zhu Qizhen was born, there was a lack of eunuchs around him. But everyone was hesitating, worried that Zhu Qizhen would not live long, because the queen and Sun Guifei would not let Zhu Qizhen go. When everyone was not optimistic about Zhu Qizhen, Wang Zhen felt that this was an opportunity. As long as you take care of Zhu Qizhen, the only prince, once the prince becomes the crown prince or the little emperor, won't he soar into the sky? Therefore, Wang Zhen not only did his best to take care of the little prince Zhu Qizhen, but also cultivated Zhu Qizhen's talent since he was a child. Once Zhu Zhanji accidentally discovered that Wang Zhen was playing with Zhu Qizhen while teaching the two-year-old Zhu Qizhen to memorize Tang poems. Zhu Qizhen has a good appearance, carrying a somewhat difficult Tang poem. Zhu Zhanji was overjoyed, not only named Zhu Qizhen the crown prince, but also appointed Wang Zhen as the chief eunuch to teach and take care of the prince. Zhu Qizhen was not deeply impressed by his father Zhu Zhanji, but he respected and feared Wang Zhen, for him, Wang Zhen was not only a loving father but also a strict teacher. Zhu Qizhen regards Wang Zhen as the most important person and the most trustworthy person. Therefore, as soon as he ascended the throne, he asked Wang Zhen to be the head of the Qianqing Palace and the governor of Dongchang. Soon after, Wang Zhen unified the inner palace and became the eunuch of the master of ceremonies.

Yingzong Zhu Qizhen was the emperor twice, which is the only miracle in history. At the instigation of the eunuch Wang Zhen, the young and competitive Yingzong Zhu Qizhen announced a personal expedition to deal with Walla, who was not too powerful. At that time, he concentrated the most powerful army and weapons of the Ming Dynasty, which can almost be said to be the most powerful army at that time. However, due to the underestimation of the opponent, the generals were too cautious, and Yingzong Zhu Qizhen was competitive, resulting in the 400,000 army not being able to cooperate effectively. Coupled with the betrayal of some traitors, tragedy finally happened. The all-in-one Warat cavalry broke through the periphery and killed the base camp of Yingzong Zhu Qizhen, not only capturing Yingzong Zhu Qizhen alive, but also completely destroying the morale of the Ming army. However, the Walla army, which was only 70,000 or 80,000 soldiers, drove the Ming army of 300,000 or 400,000 and occupied a large area of land like a sheep. This is the famous "Tumu Fort Change" in history.

The army of the Vala Kingdom, taking advantage of this situation, coupled with the life of Yingzong Zhu Qizhen, demanded that the Ming court surrender to Vala and cede all the land north of the Yangtze River to Wala. Otherwise, not only will you kill Yingzong Zhu Qizhen, but also occupy the entire territory of the Ming Dynasty. At the critical moment, the loyal ministers led by Yu Qian, the squire of the military department, strongly persuaded the empress dowager to preside over the overall situation, and announced that Zhu Qiyu, the second son of the first emperor Xuanzong Zhu Zhanji, was the new emperor, and Zhu Qizhen of Yingzong was respected as the emperor. Determined to protect the capital, they secured it with the help of a large number of local troops and sabotaged Vala's plot. Zhu Qiyu is the Emperor Jing in history, a tragic emperor.

Zhu Qizhen became the emperor and lost his threatening role, so Vala promised Daming to return Zhu Qizhen with a large amount of money. A year later, Zhu Qizhen returned to the capital, but he did not get the treatment he deserved. Although some ministers suggested that Emperor Jing return the throne to Yingzong Zhu Qizhen, would Emperor Jing agree? Will the ministers still obey the dictates of a captive emperor? Besides, Zhu Qizhen was sick at that time, and he really had a very serious illness. When he was in Vala, Zhu Qizhen not only did not receive humane treatment, but was also bullied by everyone. The Walla people forced Zhu Qizhen to walk barefoot, and forced Zhu Qizhen to eat raw beef and mutton. As a result, Zhu Qizhen had sheep epilepsy, and he couldn't see raw cattle and sheep or beef and mutton, otherwise he would get sick. It was also because of this that Vala was worried that Zhu Qizhen would not get anything if he died, so he agreed to let him come back. How could the Ming Dynasty restore a mad emperor to the throne? Therefore, Emperor Jing used this reason to imprison Yingzong Zhu Qizhen in Nangong, nominally to recuperate, but in fact he was locked up.

Yingzong Zhu Qizhen endured for seven years, suffered for seven years, and finally waited for an opportunity. With the support of some ministers with ulterior motives, he finally regained everything that belonged to him. Emperor Jing Zhu Qiyu, that is, his own brother, was poisoned, and Emperor Jing's family was imprisoned forever. All those who had targeted Yingzong Zhu Qizhen, and all the ministers who had opposed Yingzong Zhu Qizhen's reinstatement were all killed. Even the loyal Yu Qian was killed by Yingzong Zhu Qizhen. After experiencing the "Tumubao Change" and this coup d'état, the vitality of the Ming Dynasty was greatly damaged, and the powerful Ming Dynasty went from the peak to the decline. The two changes are related to Yingzong Zhu Qizhen, and it can be said that Zhu Qizhen harmed the entire Ming Dynasty.