In the first year of Yining (6 17), he encouraged his father Li Yuan to fight against Sui in order to win Jinyang. Tang Gaozu named Li Shimin Duke of Dunhuang and Commander-in-Chief of the Right Army to attack Chang 'an and destroy Sui.
In May of the first year of Wude (6 18), Li Yuan deposed and proclaimed himself emperor, changed his country name to Tang, and made him a Shang Shuling and a general, You Yiwei, and became the king of Qin.
After the establishment of the Tang dynasty, the territory was limited to Guanzhong and Hedong areas, and it has not completely ruled the whole country. Therefore, he often went out to pacify the separatist forces such as Xue, Liu Wuzhou, Dou Jiande and Wang, and made great contributions to the establishment and unification of the Tang Dynasty.
In 626 AD, he launched the Xuanwu Gate Rebellion, killing his brothers, Prince Li and Li Yuanji, the king of Qi, and their sons. He was made a prince, and Tang Gaozu Li Yuanchan was located in Li Shimin.
After Li Shimin became emperor, he actively listened to the opinions of ministers, ruled the world with civilization, expanded his territory and became a famous monarch in the history of China.
Emperor Taizong was open-minded, good at training, and practiced economy at home, so that the people could recuperate. Finally, it made the society prosperous and peaceful, created the famous rule of Zhenguan in the history of China, and laid an important foundation for the prosperity after Kaiyuan.
In the twenty-third year of Zhenguan (10,649), he died in the wind in the temple at the age of 52 and was buried in Zhaoling.
Extended data:
Shortly after the establishment of the Tang Dynasty, there was a fierce battle for the throne with Prince Li.
Originally, Li Shimin contributed the most to the establishment of the Tang Dynasty. He also recruited famous men such as Qin and Li Jing, and made extensive friends with celebrities. Therefore, his strength is unparalleled.
Li led the army to win several battles in Taiyuan. Although he is not as powerful as Li Shimin, he has the legal status of a prince, which makes a large number of royal family members gather around him.
He looked forward to being in Guanzhong, with a solid foundation in Chang 'an, the capital, and even the defenders of the imperial court (guards of Xuanwu Gate) were under his control. He also courted Li Yuanji, king of Qi. Generally speaking, Li and he are equal.
One day in the ninth year of Wude, the court sued Li Yuanji and exposed their evil deeds in the harem. Gaozu was surprised and said, "How could this happen?"?
Li Shimin said, "Not only that, they tried to kill me several times. If they succeed, my son will never see his father! " Gaozu said, "What you said is very important. I will interrogate myself tomorrow! " That night, Li Shimin battalions.
On July 2, 626, Li Shimin personally led Sun Chang Wuji and others to ambush near Xuanwu Gate. The general guarding Xuanwu Gate is Chang He, who was Li's confidant and was later bought off.
When Li and Li Yuanji came to Huxintang, they found that the situation was abnormal. They immediately turned around and ran to the East Palace. They only heard someone shouting, "King Qi, why don't you go to court?"
Li Yuanji looking back, it was his rival Li Shimin. He quickly picked up his bow and arrow and shot three arrows at Li Shimin in a row, all of which missed. Aim at Li and shoot an arrow. Li fell off his horse and died. Li Yuanji hurried to the west and was shot dead by Wei Chijingde's arrow.
When the three brothers caught fire, Tang Gaozu was taking a boat trip in the seawall with his ministers and concubines. Suddenly, Gaozu saw Wei Chijingde coming in a hurry and asked, "What are you doing here?"
Wei Chijingde said, "The Prince conspired with the King of Qi, and the King of Qin was afraid to disturb your majesty. The special envoy escorted the coachman." . Gaozu was surprised and asked, "Where are the Prince and the King of Qi now?" Wei Chijingde said, "It has been killed by the king of Qin".
Gaozu was very sad and ordered the cruise ship to dock. He turned to Pei Ji and others and said, "I didn't expect such a thing to happen today. What do you think? " Xiao and Chen said, "Yuan Ji was not successful when it was built. The king of Qin won the hearts of the people because of his merits."
Gaozu said, "I think so, too." Wei Chijingde quickly said, "it's not completely calm outside. Please issue a decree that all troops should obey the command of the king of Qin. " Gaozu immediately sent a message to end the coup.
Three days later, Tang Gaozu declared the king of Qin a prince, and all state affairs were handled by the prince. In August this year, Tang Gaozu was forced to give way, claiming to be the emperor's father.
When Li Shimin became emperor, he was Emperor Taizong. In the second year, the title was changed to Zhenguan. Historically, this coup was called "the change of Xuanwu Gate".
Baidu Encyclopedia-Li Shimin
People's Network-The Change of Xuanwu Gate on July 2, 626