In the early years of Kaiyuan, Ying was made a prince. But later, she fell in love with the harem, and Ye Zhao, the mother princess of the prince, gradually fell out of favor. Li Mao, the birthday girl, is very popular with the emperor. Wu Huifei wanted his son, Li Mao, the longevity king, to be a prince, so he began to frame Prince Ying. And his son-in-law Yang Hui and Li began to speak ill of the prince, which made them dislike him at first. He tried to abolish the Prince, but Zhang Jiuling stopped him. Later, he went on strike at the age of nine. In the end, the prince was abolished, and Xuan and Du were given the post of East City. That is, the "Three Shu Ren Events" in history.

This also made Tang Xuanzong the first emperor to kill three sons in a row. After this, he may have some regrets. He didn't make his birthday a prince. Nine months later, Wu Huifei died of illness. Finally, Wang Yu, a loyal Wang Yu, was established as the Crown Prince and later renamed Shao Heheng.

(Refer to Baidu Encyclopedia Hengli)

My biological mother, Yang.

Yang and Wu Zetian's mother belong to the same family, but their kinship has not been recorded in the official history. Yang's great-grandfather Yang Shida was an official in the Sui Dynasty. During the genius years of the Tang Dynasty, Yang Shida, as a matriarchal relative of Wu Zetian, was posthumously named King Zheng and was also given to Qiu. Yang's father, General Zuo, was given to Qiu and Zheng Guogong. Yang has a younger sister who is a concubine.