On the fourth day of June in the ninth year of Wude (July 2, 626), Li Shimin launched the "Xuanwumen Rebellion", killing his eldest brother, Prince Li, and his fourth brother, King Li Yuanji of Qi, and his son, and was made a prince. Soon, Tang Gaozu Tang Gaozu abdicated, Li Shimin acceded to the throne, and changed his chastity.
Extended data
Li Shimin's strategy is to rise in Taiyuan. Tang gaozu promised to make him a prince when it was done, but after Tang gaozu established the Tang Dynasty, Li Jian became a prince. After pacifying the world, Li Shimin became famous, and Li immediately joined forces with Li Yuanji to crowd out. Tang Gaozu's indecision also made the decrees of the DPRK and China conflict with each other, which accelerated the confrontation between philosophers. ?
Li Dage's crown prince knew that he would not surrender to the throne, and thought that he laid the foundation for the establishment of the Tang Dynasty. Therefore, he became more and more suspicious that Li and his fourth brother, Li Yuanji and Qi Wang, ministers of these two factions were in conflict with each other. Has Lee ever been poisoned? [8]? . Among them, the Prime Minister Pei Ji, the counselor Wang Jue, and the East Palace Guard General followed Li and Li Yuanji.
Du Ruhui and Fang were counselors of Qin, while Qin, Duan, Hou and Fang were generals, following Li Shimin. Prime Minister Chen Hechen and his son secretly supported him. The other generals, Li Jing and Xu Shiqi, and the minister, Yu Shiwen, remained neutral.
In the ninth year of Wude (626), Turks invaded the Tang border. Li Xiang suggested that commander Li Yuanji should go to Turkey? . Wang Chang, who served as Cheng Geng (the official in charge of time) in the Prince's East Palace, has been bought by Li Shimin, the king of Qin.
Become Li Shimin's eyes in the East Palace and quietly tell Li Shimin: "Li wants to control the military forces of the king of Qin and prepare to ambush the king of Qin in Kunming Pool." ? So Li Shimin decided to strike first.
On June 2, 626, near the Xuanwu Gate in Chang 'an Miyagi, the imperial capital, the Crown Prince Li and Yuanji Wang were shot and killed, which is called "the change of Xuanwu Gate" in history. Later, Li and Li Yuanji were killed and removed from the genealogy. Tang Gaozu gave military and political power to Li Shimin, king of Qin,
Three days later (July 5, June 7, 626), Li Shimin was appointed as the Crown Prince, and wrote: "From now on, all governors, big and small, will be appointed to carry out military affairs and then listen to the emperor."
On the 9th Jiazi Day in August of Wude (September 4th, 626), Li Yuan abdicated as the emperor's father, and became the Zen master of Li Shimin. Li Shimin ascended the throne as emperor, and the following year he changed his chastity.
References:
Baidu Encyclopedia _ Li Shimin (Emperor Taizong)