Xuanwu Gate Incident

The Xuanwu Gate Incident (玄武門之變) was an imperial palace coup d'état for the throne of the Tang dynasty on 2 July 626, when Prince Li Shimin and his followers assassinated Crown Prince Li Jiancheng, Prince Li Yuanji and their families.

Trivia

 * The Xuanwu Gate Incident was a real life event.