What happened to the "Xuanwumen Change" in the early Tang Dynasty? Can it be avoided at that time?

Tang Taizu Li Yuan rose up against the Sui Dynasty and conquered the world with his army. He was destroyed, and Wang Dou Jiande was destroyed. It can be said that the contribution to the establishment of Li Shimin in the Tang Dynasty was great, and no one dared to defy or disrespect it.

But the second son, but the eldest son. According to the ancient order, it became Prince Li.

However, after Li became a prince, his heart was unstable, because he deeply knew that the world was made by his younger brother, not him. Li Shimin's contribution to the establishment of the Tang Dynasty was indomitable spirit, but he didn't.

Because of inner fear, inner anxiety, fear of losing the status of the prince, and Li Yuanji's instigation, Li repeatedly contacted his favorite concubine in the palace to slander, alienate, alienate and even demand punishment, depriving him of his position, military power and many advisers and generals in the palace.

Even if Li Shimin had to be moved to Luoyang, Li Shimin felt threatened, and many advisers and generals who followed him felt this naked risk even more. They realize that if they don't fight, there will be no good end in the future.

So there was a plan to ambush at Xuanwu Gate and pretend to let them enter the palace to face the saints, but they were killed there.

Li Shimin hesitated, trying to tell a fortune. At this moment, Zhang came in and said loudly: Is it necessary to calculate the urgency of the matter? ?

So he decided to kill two people in Xuanwu Gate. Weichi Gong shot Li Yuanji with an arrow in Xuanwu Gate. Zhang resisted the city gate by himself, so that the reinforcements of the prince outside the city could not enter, and the world was stable and the throne returned.

This must be inevitable, because two people are competing for the throne, and no one can let them, because no one knows whether the person who let them die like this in the future, so there will be struggles and changes in Xuanwu Gate.