In Historical Records, Yang was described as "extremely expensive", but Yang was deeply taught by his eldest grandson and kept a low profile. She knows very well that although her lineage may be more noble than any woman in Li Shimin's harem, it will also be the first condition for her conviction. So she will deliberately hide her uniqueness and make herself like other women in the harem. Deliberately for a long time became a habit. Later, even she gradually forgot the identity of the princess of national subjugation, but carefully grasped her discretion as a new imperial concubine. She gave birth to two princes, one is Wu's, in the third row, and the other is Shu Wangkui, in the sixth row. Because of her modesty, beauty, princess-like natural behavior, and an excellent son-Wu, Li Shimin once proposed to make her queen after the death of her eldest grandson, but this proposal was only a suggestion in the end-her lineage is an insurmountable obstacle.

In the chaotic harem, sons are the greatest reliance of mothers. From this point of view, Yang is lucky. She has a perfect son, Wu, "the essence of heaven and earth, the spirit of all things is also long." This sentence won't make people feel too much, because he is so excellent. Think about it, too. How can people like Emperor Yangdi and Li Tang, who combine the excellent genes of emperors in the two dynasties, not be excellent?

After Li Zhi succeeded to the throne, he lost his mother and son, who were blessed by Emperor Taizong, and had nowhere to run in front of Sun Chang Wuji, who was deliberately trying. In the end, she was involved in the case of Princess Gaoyang's rebellion and was executed on trumped-up charges. Until now, the question of why Sun Chang Wuji must execute the clever Li Ke still bothers me. Many experts in Tang Shi gave unreasonable answers. Perhaps no one can answer this question except the eldest grandson who was later executed on the same charge. Or perhaps the answer in "The Book of the New Tang Dynasty" is a positive solution: "Sun Chang is deeply jealous of the emperor. In Yonghui, the love for the house is rebellious, so it is because of things and despair. "

If a person's death is beyond the reach of this world, then his Excellence is unimaginable. Since his nephew faced such an outstanding opponent, Sun Chang Wuji could only sentence him to death.

After Wu's death, his brother was demoted and moved to Bazhou, and his name was restored after his death. And their mother, Yang, has since disappeared from historians' works. According to New Tang Book, Yang Fei was buried in the royal cemetery of Sui Dynasty. Without posthumous title, it is extremely bleak.