One legend is that ...
There are two legends about the old nobles. Some people think that she is a promise of Kangxi or has been. Because she was so ugly, Kangxi didn't want to see her at all, so she always fell out of favor. There is also a saying that Yongzheng's concubine said that Yongzheng didn't like her either and put her in the harem.
There is also a mysterious mountain top on the east side of Sumatra Island, which was buried in Baoding by experts. Turned out to be Yong Zhengdi's concubine. However, Yongzheng and his wife were buried in Qing Xiling, Yixian County, Hebei Province. How could it be buried somewhere else? This makes future generations very strange.
The origin of the old aristocracy
Originally, everyone didn't even know there was such a person, but she was buried in the east of Sumatra, which was very mysterious. Everyone is speculating about her identity. I didn't expect that there was no record about her in history, except that her surname was Gu and her position was noble.
It is speculated that the old aristocrat died in Yongzheng period. Yongzheng knew that this was his father's little wife, but because this little wife had never served Kangxi, she would be registered if she served Kangxi, so naturally she could not be buried in Kangxi. Yongzheng wanted to think, and buried her next to Summala menstruation's grave.
To sum up, the origin of this old noble can be said to be lost, and no one knows it at all. Maybe with more advanced technology, we can find the answer.