Nurhachi clearly left Khan to Dourgen. How did Huang Taiji succeed to the throne later?

First of all, it is impossible for Nurhachi to pass the sweat to Dourgen. Huang taiji was 34 years old when he ascended the throne. He is 20 years older than Dourgen, which means that Dourgen is only 14 years old. Even if Nurhachi dotes on Dourgen again, it is impossible to pass the sweat on to a kid.

Secondly, later generations often talk about Huang Taiji and Dourgen together because of a woman, who is called Da Yuer, that is, sourdrang queen who assisted three emperors. In the real history, Huang Taiji did rob Dourgen's beloved and even forced her to get married, and all this turned out to be because of a ridiculous prediction, that is, the fortune teller said that Da Yuer had the fate of being a queen. But this does not mean that Huang taiji robbed dourgen's sweat.

It is natural for Huang Taiji to inherit Khan's position, and there is no conspiracy in it. However, every step of his succession to Khan's post was really difficult.

At first, Huang Taiji was not Nurhachi's favorite candidate, because his biological mother was not favored. Daishan, another son of Fujin, was deeply loved by Nurhachi. This can be seen from the fact that Nurhachi once made Daishan a prince. Although Daishan became a prince, Huang Taiji was not reconciled. He always pays attention to Daishan's every move, perhaps it is providence. He found that Daishan was closely related to one of Nuerhachi's concubines, so he took the opportunity to have sex with them. Nuerhachi was furious when he learned about it, and immediately abolished the position of Prince Daishan.

Of course, Huang Taiji was able to inherit Khan's status and establish the Qing Dynasty, not just by intrigue. He was resourceful. When he was young, he followed Nurhachi around and made great achievements. Therefore, no matter from what aspects, he will be an excellent successor.