I present a sample of my comments.
The emperor's son-in-law in the Qing Dynasty was known as the forehead, not the horse, this is not another title?
Why is it called the emperor's son-in-law?
Why should we call the emperor's son-in-law a son-in-law? This must be related to the late Eastern Han Dynasty to the Jin Dynasty. Although there was a post of emperor Fu Wei in the late Qin Dynasty, it was not much related to the emperor's son-in-law. It was not until the three kingdoms that at that time, the people who took charge of the Queen's consort also married the princess. The same happened after the Jin Dynasty, when the emperor's son-in-law was simply titled "Qima Du Qian". Therefore, the emperor's son-in-law was called the habit of a son-in-law.
Can't we change it?
Many dynasties like the system of inheriting the former when they change their dynasties, such as the system of inheriting the Qin Dynasty from the Han Dynasty, the system of inheriting the Sui Dynasty from the Tang Dynasty, the system of inheriting the Ming Dynasty from the Qing Dynasty Why didn't these dynasties change? Can't we change it? Of course, it can be changed, but which is easier to go from 0 to 1 and 1 to 100? Moreover, since the founding of the Emperor Qin Shihuang system, to the Qing Dynasty has not changed, including the imperial many titles and systems are perfect. In some cases, the improvement of the former system will be much better than the complete self creation.
In Qing Dynasty, there were som