It was magnificent, but it also had a strong bloody atmosphere; the most famous was the change of Xuanwu Gate. The change of Xuanwumen made China a ming emperor for thousands of years, and also allowed the Tang Dynasty to come to the dynasty, but for people in that era, it was a very serious thing, because it was a tragic change of human morality for the Li royal family and for the founding prince Li Yuan. However, as the founding emperor, he had courage, but he did not resist but established Shimin as the prince, and finally passed the seat to the second son who killed his brother.
In fact, before this incident, Li Shimin first went to sue a complaint, saying that the crown prince and Li Yuan's concubine in the palace had an affair, but this news made the founding prince very depressed, whether true or false, he was in a bad mood anyway, so he found a few loyal old ministers and ordered Li Shimin to confront him tomorrow in the Jianjian Yuanji Palace. In fact, this was just the Qin King's delaying strategy. He had already bought the Xuanwu Gate keeper, so when the brothers came over the next day, he led his cronies to shoot the two to death.
In fact, after the death of Prince Qi of this matter, Li Yuan was already afraid to detect it, but at that time, Li Shimin's general Wei Chi had already come to the palace, and the more loyal ones of Li Yuan's personal bodyguards were also killed by him with soldiers. At this time, Li Yuan already knew that things were out of his control, and the protective forces around him were also dead, and all that was left was the people arranged by Li Shimin.
At that time, the situation was that Li Yuan could not control the development of the situation, and he was also very clear about what kind of personality his second son was, and he could tolerate others who could not tolerate it, but at the critical time, he could also be fierce. In fact, Li Shimin's actions later also confirmed his speculation, and the King of Qin did not hesitate to kill the prince and the Men, women, and children of the Qi family, including infants, after he started to move, and the standard grass was cut and rooted. Therefore, at this time, there was really no one else to choose except to make him the prince.
Of course, Li Yuan was also ashamed in his heart, when the incident occurred that year, it was the second son who went on a crusade to the west and laid most of the country for him. He also promised to make him crown prince, but in the end he made a concubine. Now that his brother wants to be in such a situation, he is already very old, and he is no longer as bold as when he first revolted. Because of these reasons, in the end, the founding monarch of the Tang Dynasty made Li Shimin the crown prince, and quickly abdicated to let him ascend the throne, while he took refuge in the Taiji Palace and no longer cared about political affairs. His concessions made the King of Qin, after becoming emperor, turned the Tang Dynasty into the most powerful country in the world at that time, and himself became the Heavenly Khan.