Well, as far as I know, Li Yuan is the father of Tang Gaozu Li Shiming. Are you wrong about Tang Gaozu Li Yuan (566 ~ 635)? The founding emperor of the Tang Dynasty. The word uncle de. Ji Cheng, Longxi (now Qin 'an County, Gansu Province) Han nationality, whose ancestral home is Zhao County (now Longyao County, Xingtai City) Qin Long. Grandfather Li Hu was an official in the Western Wei Dynasty. Father: Liu Yun, an official of the Northern Zhou Dynasty, an ancient official, General Anzhou and Zhu Guo Jiangjun. Mother is the lonely royal elder sister of Emperor Wendi of Sui Dynasty, so she is very close to her. After Yang Di ascended the throne, Li Yuan was appointed as the magistrate of Xingyang (now Zhengzhou, Henan Province) and Loufan (now Jingle, Shanxi Province). Later, he was called as a minor supervisor in the temple and moved to Wei Wei and Shao Qing. In the 11th year of Daye (6 15), I went to Shanxi to visit Ambassador Hedong to comfort him. Thirteen years, I stayed in Taiyuan. At that time, peasant uprisings spread all over the country at the end of Sui Dynasty, and the political situation was turbulent. In May of the 13th year of Daye, he rebelled with his second son and recalled his eldest son Li and his fourth son Li Yuanji from Hedong (now Yongji West). After the rebellion in Tang Gaozu, he sent Liu Wenjing to Turkey and asked Khan to send troops to help him. At the same time, he recruited troops and led the troops south in July. At this time, under the leadership of Shi Biao, the Wagang army launched a fierce battle with the king trapped in Luoyang and took advantage of the gap to advance into Guanzhong. In November, he attacked Chang 'an and gained a foothold in Guanzhong. After Li Yuan entered Chang 'an, Wang Gang, the grandson of Yang-ti, was made the son of heaven (Emperor Gong), changed to Yi Ning, and respected Yang-ti as the emperor's father. In the name of You Yang, he added fake Huang Yue, made a banquet, became a prefect, and all the military departments, ministers and prime ministers inside and outside sealed the Tang King. In May of the following year (6 18), Li Yuan proclaimed himself emperor, renamed Tang, and made Chang 'an his capital. Tang Yitong soon spread all over the country. During the reign of Li Yuan, according to the old system of Emperor Wen of Sui Dynasty, the central and local administrative systems were re-established, the format of decrees was revised, the system of land equalization and tenancy adjustment was promulgated, and the system of government and soldiers was rebuilt, which laid the foundation for the official system, criminal law, military system, land and class service system in Tang Dynasty. During the Wude period, the ruling clique was full of complicated struggles. Pei Ji and Liu Wenjing were both assistants of Taiyuan Uprising, and Pei Ji won the favor of Tang Gaozu. It is unfair that Liu Wenjing, the confidant of Shimin, the king of Qin, is inferior to Pei Ji in talent and merits. Tang Gaozu killed Liu Wenjing for an excuse. Shimin, the king of Qin, believed that in the process of the establishment of the Tang Dynasty, his achievements surpassed those of Prince Li, but due to his second son, he could not inherit the throne. When the prince was built, he also knew that Shimin was a great threat to the status of his crown prince. As a result, the two sides launched a fierce struggle for the right to inherit the throne. In this political struggle, Li Yuan often stands on the side of completion. The prince's confidant was ordered to recruit strong men and send them to Chang 'an in case Li launched a coup. In the seventh year of Wude (624), someone exposed it to Tang Gaozu. In a rage, he came up with the idea of abolishing Li and replacing him with a prince, but it didn't come true. The change of Xuanwu gate broke out on the fourth day of June in Wude nine years. In this coup, Li Shimin killed Li and Li Yuanji, and forced Li Yuan to become a prince. Soon, Tang Gaozu was forced to abdicate, and Li Shimin acceded to the throne for Emperor Taizong. Li Yuan died in Tai 'an Palace after a life of idleness and frustration. Temple name is Gaozu. Bury the grave. At the beginning of the Tang Dynasty, Li Yuan Group was the largest group, including Pei Ji, Tang Jian, Dou Wei brothers, Wen Daya brothers, Yin Kaishan,,, and their daughters Princess Pingyang and Ma, as well as Chen, Qu Tutong, Xiao Yu, Yu Shiwen, Yang Gongren and many other bureaucrats who joined the Sui Dynasty. There are only a few talents in the prince group, such as,, Xie, etc. Li Gang was alienated, Du Yan was brought home by Fang, and the Prince Group mainly relied on Li Yuan Group. Li Shimin Group is an official of the Ce Tian family headed by Du Fang, who was gradually established during the separatist war. Its members are familiar to everyone. In addition, the imperial clan groups were ignored. Among the two groups headed by Li Shentong and Li, Li Shentong started his army in Guanzhong, and his subordinates included Shi and Ling Hu Defen. In the separatist war, many people were recruited, among which Li Ji was the most famous. Li Pingding Shannan and Li Jing seized Jiangnan. The group consists of Li Jing, Feng Ang, Liu Yue and people who joined Jiangnan. These two groups also have an important influence in the political situation. Li Shimin inquired about Excavate and Li Ji, and learned about the neutral attitude of these two groups, which led to the Xuanwu Gate mutiny.