Is the founder of the Vietnamese Li Dynasty a descendant of Emperor Taizong of the Tang Dynasty?

Li Taizu, the founding monarch of the Li Dynasty of Vietnam, whose real name was Li Gongyun, was believed by some to be a descendant of King Cao Li Ming, the son of Emperor Taizong of the Tang Dynasty. Li Gongyun, whose ancestors were immigrants from Fujian, China, is a native of Gufa Village.

When Li Gongyun was in power, his reign title was Shuntian, his temple name was Taizu, and his posthumous title was Emperor Shenwu. He was buried in Shouling. He had six sons and thirteen daughters. In his early years, he studied under the eminent monk Wan Xing Master, and served as the commander in front of the Zuoqinwei Hall of Li Zhuang Zong. In 1010 AD, Li Gongyun took advantage of the young age of the former Li Dynasty heir to usurp the throne, change Yuan Dynasty to Shuntian, and establish the Li Dynasty.

After Li Gongyun came to power, he first moved the capital from Hua Lu, a small area in the Ninh Binh mountains, to Da Luo, a strategic city located in the rich Red River Delta area, and renamed it Thang Long (now Hanoi), making it a A political, economic, cultural and military center with Buddhism as the state religion, it played an important role in the development of Vietnam. He changed the ancient Fazhou to Tiande Prefecture and Hualu City to Chang'an Prefecture. Eight temples were built in Tiande Prefecture and monuments were erected to record his achievements. Build a palace in Dragon City and build four major temples outside the city.

After Li Gongyun seized the throne, he sent his foreign ministers Liang Renwen and Li Zaiyan to the Song Dynasty to request for canonization. Emperor Zhenzong of the Song Dynasty only verbally condemned him and said: "Li Huan got it unjustly, and Gong Yunyou did it, which is very abominable." Then he comforted himself and said: "However, he is not responsible for his barbaric customs." Then he said: Still canonized Li Gongyun, authorizing Li Gongyun to stay in Jinghai Haijun with the titles of Tejin, Grand Tutor of the School, Protector of Annan, Jinghai Jiedu Observation and Disposal Envoy, and King of Jiaozhi County, etc., and rewarded 3,000 households with food, and 1,000 with real food. He was also the imperial envoy to the state of Shangzhu, and he was specially awarded as a hero of promoting sincerity and Hue. He was also given clothes, gold and silver belts, utensils, coins and other items. ? After the Li regime was recognized by the Song Dynasty, a system gradually formed, that is, once someone succeeds to the throne, he must accept the canonization of the Song Dynasty and must be recognized by the Song Dynasty.

In 1014 AD, after defeating the Dali army in Phong Lam Prefecture (which governed present-day Viet Chi, Vinh Phu Province, Vietnam), Li Gongyun expanded to the north and northwest, eventually occupying present-day Vinh Phu Province, Ha Xuan Province, and Bac Tai Province. He moved his daughter to the Diliao area and married his daughter to Jia Chenggui, the leader of Jiadong. He made him the magistrate of Liangzhou and had great potential to seize the two states of Song, Yong and Qin.