As a necessary condition for the rule of Zhenguan, the meaning implied by the change of Xuanwu Gate is by no means as simple as it seems, this is the best psychological warfare fought by Tang Taizong Li Shimin, and it was never the crown prince Li Jiancheng who played with him, but the emperor Li Yuan.
It can be said that Li Tangsheng was a Jiangshan built by Li's father and son, and in this process, Li Shimin, the king of Qin, was born a lot of hard work, but he was born later in the day, and in terms of imperial succession, he did not occupy the heavens at all, but Li Shimin realized this, so in this "change of Xuanwu Gate", he used the advantages of "people" and "geographical advantages" to forcibly change his life against the heavens.
The "Xuanwumen Revolution" ostensibly led to the alliance of the crown prince Li Jiancheng and his younger brother Li Yuanji, the Prince of Qi, to exclude and frame Li Shimin; then Li Yuan was more partial in it and loved the prince, which made the meritorious group army led by Li Shimin have a dismal fate, and even in an extremely dangerous situation. As the saying goes, rabbits are anxious to bite people, and if the heroic group army headed by Li Shimin can defeat Li Tangjiangshan, will it sit dead and wait? Thus triggered the famous "Xuanwumen Change".
Many people will think that because in this military change, Li Shimin shot the crown prince Li Jiancheng to succeed to the throne and then become the emperor, thinking that this is the struggle for the throne between Li Shimin and Li Jiancheng, which is actually a big mistake. Or it should be said that Emperor Taizong Li Shimin did not inherit the throne, but sought power and usurped the throne.
Is it better for everyone to understand that the "Xuanwumen Revolution" has always been a war between Li Shimin and Li Yuan.
First of all, if it were not for Li Shimin's favoritism, the little nine-nine sent by the prince would not have been enough to play with the meritorious group army represented by Li Shimin, even if the prince pulled Li Yuanji, the king of Qi, he still could not drink Li Shimin to resist, but Li Yuan's partiality really annoyed Li Shimin.
Secondly, where is xuanwumen? Where is the Taiji Palace where Li Yuan lives? Where is the Eastern Palace where the prince lives?
A detailed look at the map of the defense of Chang'an City is clear at a glance, and you mutinied on the emperor's pillow and said that it was a power struggle with the crown prince? It's a bit inappropriate to look at.
Finally, looking at Li Yuan's situation in the change of Xuanwu Gate, it was not nine deaths and one life, it was simply ten deaths and no life.
When Wei Chigong wore armor to ask An (to threaten) Li Yuan, the same Zizhi Tongjian recorded that Shi Suwei (Li Yuan) and Qin Fubing (Li Shimin) and the Ergong (Li Jiancheng and Li Yuanji) were still fighting around each other. Su Wei, who was supposed to protect Li Yuan, and the people of the Qin Dynasty Palace united and worked together to cut down Li Jiancheng's people.
That is to say, at that time, the entire armed force in the Taiji Palace was basically Li Shimin's people, so Li Shimin dared to take eight hundred Qin soldiers to Xuanwu Gate.
This "change of Xuanwumen" by Li Shimin, the King of Qin, was for Emperor Li Yuan from the beginning, and fortunately Li Yuan understood it, so after two months of meaning, Li Yuan chose to give way to his son Li Shimin, and also opened the prosperity of the rule of Zhenguan.