Emperor Qianlong is the oldest emperor in the Qing Dynasty, reaching 87 years old. He lived longer than his grandfather Kangxi 19 years. Although Emperor Qianlong lived a long and healthy life, most of his sons were short-lived. What caused this?

The first is the poor medical conditions. At that time, the medical level was not very good. Even the royal family may die after getting sick again. Yong Lian is the second son of Emperor Qianlong, and she is also the most valued son of Emperor Qianlong, secretly making him a prince. However, his most valued son caught a cold and eventually died at the age of nine. In fact, most of the emperors in the Qianlong period died so early because of illness.

Secondly, it is determined by the body of the Prince's mother. The biological mother is the decisive factor that determines the physical quality of the prince. Ganlong's biological mother is Xi Guifei from Empresses in the Palace. In history, when Xi Guifei first entered the hidden house of Yongzheng, she was just a princess. Gege is a concubine with low status around the prince of Qing Dynasty, and her living conditions are relatively difficult.

Compared with the pampered concubines of emperor Qianlong, the physical quality of imperial concubine Xi is much better. In addition, Xi Guifei also has longevity gene, born in 1692, died in 1777, and lived to 85 years old. Emperor Qianlong also inherited his mother's longevity gene.

Some of his children's mothers died early because of their physical fitness.

The last reason is the problem of Qianlong. The short life of the princes of Qianlong is related to the harshness of Qianlong.

Emperor Qianlong had a good life and was deeply loved by his grandfather Kangxi. Among Yongzheng's children, only four princes survived successfully and were eligible to inherit the throne, so there was little competition pressure. In addition, Qianlong knows the way of keeping in good health and has the skill of nourishing the heart and prolonging life.

Look at the governors of Qianlong, the situation is far worse than their parents. Lord Qianlong was not as tolerant as Yongzheng and Kangxi, and was very harsh on his son. After the death of his beloved queen Fu Cha, his temper became even weirder.

It was after Fu Cha's death that the eldest son was deposed from the throne because he was not sad enough, and finally died of depression. Several other princes also died of reprimand.