What is history: it is the echo of the past to the future, the reflection of the future on the past. - Hugo
On August 23, the thirteenth year of Yongzheng, the Yongzheng Emperor died in the Yuanmingyuan at the age of 58 and reigned for 13 years.
That night, the body of the Yongzheng Emperor was transported back to the Forbidden City from the Yuanmingyuan. Hongli appointed Wang Yunyu (允祹), Prince Hongzhi (弘日) the Prince of He, Gong Namutu (公納穆图), Haiwang (海望), Shangshu Xuben (徐本) of the Punishment Department, Fu Nai (都統傅鼐), The Left Attendant of the Bureaucracy (吏部左侍郎浦泰), and The Left Attendant of the Bingbu (兵部左侍郎) Yang Ru (杨汝) as ministers to handle funeral rites.

In September of the ninth year of Yongzheng (1731), the empress fell ill in bed, and by the end of the month, her illness had become serious and she was moved to Changchun Garden. The Yongzheng Emperor, who had just recovered from a serious illness, supported his weak body and went to Changchun Garden to visit his wife with hair. As soon as Yin Chan returned to her palace, the empress died on September 29, the ninth year of Yongzheng. The Yongzheng Emperor wanted to return to Changchun Garden immediately to see empress Xiao Fu and Da Fu, but the courtiers saw that the Yongzheng Emperor was physically difficult to support, and they tried to dissuade him. From September 30, the Yongzheng Emperor quit the dynasty for five days and became a musu. Below the kings of The Capital and civil and military officials; Princesses, princesses below and below and their second-class women gathered in Changchun Garden to mourn and hold their clothes for twenty-seven days. Because the Forbidden City Palace was being repaired at that time, the Empress Zi Palace had to be parked in the middle of the Nine Classics and Three Matters Hall in Changchun Garden.
The Yongzheng Emperor was deeply touched by Nian's spirit of loyalty and patriotism, righteousness and annihilation of relatives, but he did not forgive Nian Qianyao because of Nian's family, and still stepped up his crackdown on Nian Qianyao. Nian Shi was already weak, coupled with the long-term fear of his brother, uneasy sleep and food, and his health was getting worse and worse, and by November of the third year of Yongzheng (1725), he was already seriously ill, and finally he was bedridden. On November 15, the Yongzheng Emperor also had a premonition that Nian's condition was not good, so he issued an edict to the Ministry of Rites: Noble Concubine Nian was gentle in nature and cautious in her manners. In the current affairs of the clan residence, he was cautious and respectful in front of the empress, and he was generous and peaceful. Emperor Kao Jiaqi was dignified and noble, and was given the title of Prince's Concubine. After she ascended the throne, the noble concubines devoted themselves to the imperial examination and the imperial concubine's major affairs, and they did their best to perform ceremonies, and they could really praise the internal affairs. Concubine Su was sick and weak, and for three years, she handled the aircraft maintenance, did not hesitate at night, did not pay attention to the diagnosis and treatment of the consultation, and paid attention to the prescription medicine, and paid the doctor for a long time. Now that it is getting heavier and heavier, my heart is deeply missed. Noble concubines were given the title of Imperial Noble Concubines. If something happens, all the etiquette will be performed according to the imperial concubine.
It is still unknown whether the Noble Concubine Nian of the Dunsu Emperor was buried in the Tailing Underground Palace, whether it was the intention of the Yongzheng Emperor or the arrangement of the Qianlong Emperor. However, Nian Shi was promoted to noble concubine because of his brother's merits, and later promoted to imperial concubine, and was not punished for his crimes, which is still rare in history. Whether it is favored because of its deep understanding of righteousness, or whether it has a great merit in procreation, and it has yet to be studied; However, her death still had a lot to do with her brother's sin and the Yongzheng Emperor's snub.