She was a Han chinese woman from Jiangnan, but she was sent to the imperial palace and became a concubine of the Kangxi Emperor, she gave birth to two princes for the 65-year-old Kangxi, becoming the last woman to give birth to Kangxi, she received the honorific title of the emperors of the Yongzheng and Qianlong dynasties, and her son was also crowned as a prince, but she was frail and sickly, and she died in the most beautiful years, leaving endless sighs for posterity...

In the late Kangxi Dynasty, Kangxi favored some Han concubines more, these Han concubines were not flag girls, not eligible to participate in the draft, but they were sent to the imperial palace by foreign officials, became the concubines of the heavenly son of the dynasty, and the lucky ones also gave birth to children for the emperor.
Mu Concubine Chen is a Han woman from Suzhou, her father's name is Chen Qishan, the historical data do not record the identity of Chen Qishan, presumably there is no official position, it can be seen that Chen's origin is very low. However, at that time, the Qing Dynasty royal family had a tradition, some officials in the Jiangnan region would purchase local women, fill the court, or serve as palace women, or become the emperor's concubines, it is estimated that the Chen clan was dedicated to the imperial court by officials.
Regarding the time when Chen entered the palace, the historical data do not record, but in the summer of the sixtieth year of Kangxi, an Italian missionary named Ma Guoxian accidentally met Chen at the summer resort, Ma Guoxian called Chen a "young woman", presumably the age of Chen at that time would not be too large, it is estimated to be about twenty years old, then, Chen's age in the palace is almost ten years old, and it is speculated that it is about thirteen years old.
However, it seems that Kangxi had a special affection for the Chen clan and often summoned her, and although the Chen clan was not in good health, he gave birth to two sons for Kangxi, one born in the fifty-fifth year of Kangxi and named Yinmi, and the other born in the fifty-seventh year of Kangxi and named Yin. In particular, when Yin Yu was born, Kangxi was already 65 years old, which was considered to be an old son, but Kangxi's youngest son (Yin Yu) died on the day of birth. As a result, Yin Bi became the youngest son of Kangxi.
Although Chen gave birth to two princes for Kangxi, because her birth was too low, Kangxi did not canonize her, and she was always a concubine. After Yongzheng succeeded to the throne, he honored those concubines who had given birth to children for Kangxi and did not threaten themselves, and Chen was honored as an imperial white nobleman. For his young brother YinMi, Yongzheng also took great care of him, and in the eleventh year of Yongzheng, he was made the Prince of Heshuo.
"The younger brother Yun Zhi is loyal and peaceful, and is loved by the Emperor. Over the years, he studied in the palace and his knowledge gradually increased. With joy in his heart, he was crowned prince. ”
However, Chen Shi was a frail and sickly woman, and the two births caused great loss to her body, so that she died in the fifth year of Yongzheng, and it is estimated that she was in her twenties. Because Chen's son Yin Bi was favored by the emperors of the Yongzheng and Qianlong dynasties, even if he died early, Chen shi also dipped his son's light and was posthumously honored as the emperor's concubine after Qianlong succeeded to the throne.
References: Draft History of the Qing Dynasty, Records of Emperor Zongxian of the Great Qing Dynasty, Records of the Yongxian