There was no such thing in Qianlong dynasty: a very important reason was that the prince was established too early when Kangxi was in power, and Kangxi was in power for too long, so that the prince was a party for more than 30 years. Such a long period of fear and anxiety can easily lead to psychological imbalance, and it is difficult to avoid the backstabbing of brothers. Later, many times, it was also for the sake of that crown prince.

At the same time, because of his birth, he became a prince too early and became the target of all his brothers too early. Moreover, the prince himself has average ability, personality aside, and IQ is also very problematic. He is not only cheated, but also helps to plead for money. Really let Kangxi down! It can be said that Kangxi always expected too much of the prince. Once he made a mistake, he was particularly severe, but he was also particularly fond of it, which led to some personality defects. It was also based on the nine sons' seizure of the throne in Kangxi period that Yongzheng established a secret storage system, which made it impossible for the heir to the throne to know in advance. Only the emperor knows about the heir to the throne.

Although Qianlong didn't have as many sons as Kangxi, there were more than 20 who didn't survive and later. There may have been some incidents of seizing the office in private, but it is far from the degree that Jiuzi seized the office, and it is even less than this number. Of course, the quality of the son of Qianlong is far from that of Kangxi, so many of them don't have the capital to seize the office. Many people only know drinking, playing with women and caging birds, but there are really too few. At that time, I was really annoyed with Emperor Qianlong, but there was nothing I could do!

In the end, Qianlong chose Jiaqing, who was somewhat timid by nature, as his successor, and the Qing Empire began to decline rapidly!