First of all, we must understand that Yongzheng conferred the 13th brother because he had no second thoughts about himself and stood on the same front with himself. Therefore, Yongzheng canonized him as the Prince of Heshuoyi and granted him the privilege of hereditary replacement. Here is a brief explanation of the meaning of hereditary substitution, that is, future generations will not be downgraded when attacking nobles, and there is no limit to the number of hereditary substitutions. That is a common name in film and television dramas: "Iron Hat King". On the history of qing dynasty, only a dozen people were named King of Iron Hats.

Logically, it is unlikely to be abolished. However, the bad thing is the change of regime. At that time, Zai Yuan, the elegant prince, didn't wait in line.

From the death of Emperor Xianfeng, Zai Yuan, the Prince of Grace, who was appointed as the first of the eight ministers in Gu Ming. After the death of Emperor Xianfeng, the state power actually fell into the hands of these eight ministers. The Queen Mother naturally could not sit still and wanted to take the state power into her own hands. So in the end, the "Xin You coup" broke out. In this coup, Gu Ming's eight ministers became losers. As the head of Gu Ming's eight ministers, Zai Yuan naturally came to no good end, and was given death by Cixi, ending his own life.

However, Empress Dowager Cixi did not feel wronged. She took her anger out on Prince Yi and abolished the iron hat king given by Yongzheng.

But after all, it was sealed by Yongzheng, and Cixi could not rush. Three years later, the title of Prince Yi was restored, and the title of Prince Yi was given by Zai Yuan's younger brother.

I can only say that, in fact, the iron hat king's head is not so iron, but also depends on the face of the person in power and lives carefully. It's only a matter of minutes before I want to withdraw my title, just because I'm worried about the mouth of the world.