Who are Li Jing, Xu Maogong, Yuan Tiangang, and Li Chunfeng? There are too many various romances. What kind of people are they in history?
1. Li Jing: Li Jing (571-July 2, 649), Duke of Jingwu in the Kingdom of Wei, was a Han nationality and a native of Sanyuan, Yongzhou (now northeast of Sanyuan County, Shaanxi Province). A general from the late Sui Dynasty to the early Tang Dynasty, he was a famous military strategist with both civil and military skills in the Tang Dynasty.
2. Xu Maogong: Li Ji, the British Duke of Zhenwu (594-669, "ji" is pronounced as "ji"), was originally named Xu Shiji and had the courtesy name Maogong. Li Yuan, Emperor Gaozu of the Tang Dynasty, gave him the surname Li, and later changed his name to Li Ji to avoid the taboo of Emperor Taizong Li Shimin. He was Han nationality and a native of Lihu, Caozhou (now southeast of Dongming County, Heze, Shandong). He was a famous general in the early Tang Dynasty. He was also called Li Jing. He was named the British Duke and Ling. One of the twenty-four heroes of Yange. In his early years, he conquered all directions from Li Shimin, and later became one of the main generals in the Tang Dynasty's expansion of territory. He once defeated the Eastern Turks and Goguryeo and made outstanding achievements.
3. Yuan Tiangang: Yuan Tiangang, the most famous physiognomist in the Tang Dynasty, is also famous in the history of Chinese physiognomy. Born in Chengdu, Sichuan (now Chengdu, Sichuan), his birth and death dates are unknown. He was an astronomer, astrologer, forecaster, Feng Shui master, Taoist priest, and fortune teller in the late Sui and early Tang Dynasties.
4. Li Chunfeng: Li Chunfeng, an outstanding astronomer, mathematician, Taoist scholar in the Tang Dynasty, was born in Yong, Qizhou (now Qishan County, Baoji City, Shaanxi Province). He was proficient in astronomy, calendar, and the theory of yin and yang. "Tui Bei Tu" written by Li Chunfeng and Yuan Tiangang is famous for its accurate predictions. Li Chunfeng was the first person in the world to grade wind power. Li Chunfeng was smart and studious since he was a child. He was well-read and especially proficient in astronomy, calendar, mathematics, yin and yang, etc.
It is not easy to query, but I hope it will be adopted