In the late Kangxi Dynasty, Kangxi became more and more fond of some Han concubines, such as Shunyi Concubine, Xiang Concubine, Mu Concubine, etc. In fact, according to the regulations of the Qing Palace, these Han concubines were not eligible to participate in the draft, but if the emperor liked it, there would always be a way. For example, some officials in the Jiangnan region secretly procure virgins in the local area to send them into the palace, or serve as palace women, or enter the palace as concubines, and today the author wants to talk about one of them, she is the concubine of the Kangxi harem.

Xi Concubine was a Woman of the Chen Clan, born in the twenty-ninth year of the Kangxi Dynasty, 36 years younger than the Kangxi Dynasty, her father's name was Chen Yuqing, and the historical records do not record when the Chen clan entered the imperial palace, but from the customary point of view, it should not be too big, about 13 years old. Although Kangxi was over forty years old at the time, he was very fond of a young woman like Chen, often spoiling the Chen clan, coupled with the fact that the Chen clan's belly was more contentious, so this Chen clan became pregnant with a dragon species.
In the first month of the 50th year of the Kangxi Dynasty, the Chen clan gave birth to a prince, who was the twenty-first among Kangxi's many sons, and was named Yinxi. Yin Xi was the younger son of Kangxi, he and Kangxi's grandson Hongli (Qianlong) were born in the same year, it is said that this Yin Xi was intelligent and studious from an early age, and began to follow his father Kangxi on a tour at the age of 10, but when he was 12 years old, his father Kangxi died, and then Yongzheng inherited the throne.
Because Yin Xi ranked low among Kangxi's many sons, coupled with his mother's humble origins, he had no chance to participate in the struggle for a wife. Unexpectedly, this became the key to Yin Xi's good death, after Yongzheng succeeded to the throne, Yin Xi was successively named Beizi and Belle, and at the age of 23, he also handled the affairs of the red flag Manchurian capital with Prince Yin Li of Guo, and after Qianlong succeeded to the throne, he even appointed this imperial uncle who was the same age as the yellow flag Han army.
At the same time, Yin Xi's mother was treated kindly, and after Yongzheng succeeded to the throne, the Chen clan was honored as an imperial kaoqian nobleman for giving birth to the crown prince YinXi, and Qianlong even honored him as an imperial concubine after he succeeded to the throne, which can be said to have been favored by the emperors of the two dynasties. However, it seems that Chen's health has not been very good, she was already terminally ill in the first year of Qianlong, and finally died in December of that year.
On October 20, the thirteenth year of Yongzheng, Qianlong, who had just succeeded to the throne, issued an edict: "Young people are good at reading, have clear knowledge, and handling flags is also a compromise, and they intend to be crowned the king of the county." As a result, Yin Xi was made the King of Doroshen County. Although Yin Xi was a prince of both culture and martial arts, his health was not very good, and he died in the twenty-third year of Qianlong, at the age of 48.
According to records, Yin Xi had two sons, named Hongxuan and Hongxun respectively, however, neither of Yinxi's sons lived past the age of twenty, so that no one inherited the title of Yinxi, in order to continue the line of the King of Shen County, Qianlong passed on to Yin Xi, the sixth son of the outstanding literary talent, Yong Yao, as the heir, and thus the line of the King of Shen County was able to continue to be passed on.
Moreover, from the perspective of style, Yongyao and Yinxi are very similar, and Qianlong can pass this son over to Yinxi, which shows that he has great respect for this imperial uncle.
References: Draft History of the Qing Dynasty, Records of Emperor Gaozong of the Qing Dynasty, Four Genealogies of the Qing Imperial Family