Shang Zhouwang's grandmother was the famous Hu Taihou in the Northern Wei Dynasty. At that time, Xuan Wudi favored Hu Huanghou, and Hu Huanghou gave birth to a son for Xuan Wudi. At that time, there was a custom in the Northern Wei Dynasty. In order to prevent the consorts from interfering in politics, if the concubine gives birth to a son, she will be put to death as usual.
In other words, Hu Huanghou should have been put to death, but Xuan Wudi pitied Hu Huanghou, instead of killing Hu Huanghou, she was promoted and rewarded.
Later, Xuan Wudi died unfortunately, but Xu Yuan, as the next new emperor, was too young to control state affairs at all, so Xuan Wudi decided to let Hu Taihou, that is, Hu Huanghou, temporarily help Xu Yuan govern the country.
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Of course, because the baby girl emperor was only born for more than a month, it is impossible to really exercise the emperor's power. The real power is still in the hands of her grandmother Hu Taihou, who lives in a dynasty. Yuanshi County is just Hu Taihou's puppet.
Later, Hu Taihou saw that the situation in the imperial court had stabilized, so less than one day after Yuan Girl succeeded to the throne, he told court officials that the emperor was actually a daughter, and directly abolished Yuan Girl's throne and made Yuan Zhao the new emperor. However, how can Hu Taihou persuade officials to do such outrageous behavior? As we all know, the sudden death of Emperor Xiaoming must be related to Hu Taihou.