Li Shimin once said that no woman can take Jill's place in his heart. She is the only love in his life. This sentence is correct. It's not just sweet talk when you're madly in love. It covers Li Shimin's feelings for Jill all his life. But if Jill is the only love in his life, it is obviously not objective.
Extended data:
Yang Jier is a character in the TV series Taizong Li Shimin. She holds the title of Princess Izumo and is the apple of Emperor Yang Di's eye. Li Shimin, who met and hunted in the suburbs, became the object of Li Shimin's lifelong love and had a son, Li Ke, the prince of Wu. His historical prototype is Fei Yang of Emperor Taizong and Li Shimin played by the famous actor Fu Yiwei.
Yang Jier's historical prototype is Yang Fei of Li Shimin. "Old Tang Book" Li Kechuan said: "Only mother, daughter of Yang Di." Later, Li Ke, a Book of the New Tang Dynasty, said: "His mother, Yang Di Di, looks up to the earth and is the direction of China and foreign countries." Have pointed out the origin of Yang Fei.
Yang Fei is the second daughter of Yang Guang, the last emperor of Sui Dynasty, which is officially recorded, while Princess Nanyang, the eldest daughter of the emperor, is listed separately in The History of Women. Therefore, Yang Fei is Yang Guang's own daughter, not the daughter of any imperial clan.
Only the word "the emperor's daughter" clearly recorded in historical materials can be determined to be the emperor's own daughter, and other imperial daughters are not qualified to be called the emperor's daughters, which is also the basic historical materials for historians to determine Yang Fei's identity.
Yang Jier is the daughter of Yang Di, the concubine of Emperor Taizong and Li Shimin, and the mother of Li Ke, so her historical prototype should be Yang Fei in history. The name Jill and the title of Princess Izumo are both fictitious.
Baidu Encyclopedia-Yang Jier