Yuwen Chengdou is the son of Yu Wenhuaji, the prime minister of the Great Sui Dynasty in the novel, nicknamed General Tianbao, and is known as the second hero of the Great Sui Dynasty. His strength is second only to that of Li Yuanba. "Ten feet long, big waist, golden face, thick eyebrows, golden wings, weighing 320 Jin." Legend has it that he was reincarnated as a Buddha in nine days. He made outstanding contributions to pacify the anti-Wang forces. Yu Wenhuaji rebelled in the last 18 years, and Yuwen Chengdou was killed by Li Yuanba. There is no such person in the official history.

Li Shimin has fourteen sons, born to the queen and nine concubines. As far as the mothers of these princes are concerned, the mother of the third son Li Ke is the most respected.

Old Tang books. According to The Scholars, this mother is the daughter of Emperor Yang Di. "New Tang Book" also records: "(But) his mother, Emperor Yang Di, is far-sighted, which is the direction of China and foreign countries. "

I can't find her name. Her name is not in the history books. Just call her Yang Fei.

According to the heroic TV series of Sui and Tang Dynasties, Yu Wencheng died, and Ruyi should have been taken into the harem by Li Shimin. It was not revealed until the finale, but a concubine in Li Shimin was the daughter of Emperor Yang Di Yang Guang in history.