Because when Nurhaci died, Dorgon was completely unsuitable to become an heir.
Nurhaci was able to create a post-Golden Khanate with thirteen pairs of tattered armor, and in addition to luck, it has to be said that he was indeed a powerful character.
He married 16 concubines in his lifetime, and they gave birth to 16 sons, such as Chu Ying, Daishan, Huang Taiji, Dolgun, and Duoduo, especially Huang Taiji and Dolgun.
So why didn't Nurhaci choose Dolgun as his heir in the end? Why is it that Dorgon at that time was not qualified to become an heir?
Dorgon was born in 1612, and when Nurhaci died in 1626, Dolgun was only 14 years old, and the age limit deprived him of the advantage of competing with his brothers.
Because there is no age advantage, Dorgon is at a disadvantage in the battle for the Khan position.
Some people may say that the third son of the Shunzhi Emperor, the Kangxi Emperor, also inherited the throne smoothly and smoothly? Why not say he lost his age advantage?
Because the Shunzhi Emperor had already designated Xuan Ye to succeed to the throne before his death, and Xuan Ye and his second brother were born in the same year, where to use what age advantage?
However, the Nurhaci period was different, when Dorgon was not yet born, several of his brothers, such as Chu Ying and Daishan, had already followed Nurhaci to fight in all directions, and they also had their own power groups.
Although it is said that after Nurhaci abolished Daishan in 1620, Dolgun became one of the ten Heshuo Erzhen who could participate in the state affairs, but at that time, an 8-year-old child could understand what is called state politics? But just symbolically sit in a meeting.
Therefore, the failure to form his own power group was a key factor in Dorgon's failure to become Nurhaci's heir.
Even if it wasn't Emperor Taiji who won in the end, it would be impossible to get Dolgun in turn, after all, he still had more than a dozen brothers, which of these dozen brothers was not earlier than his debut?
Although Chu Ying was deposed because of his muscularity and simple mind, without Chu Ying, wouldn't there be an old second generation of good?
Daishan became famous very early, and was also designated as the heir by Nurhaci, which can be said to be only one step away from the Khan's throne, but this fight was too inflated, which angered Nurhaci. Later, when his son Shuoto "rebelled", Daishan clamored to kill Shuo, but as a result, he pit himself and was deposed by Nurhaci.
Daishan was deposed, and the old three Abai? Abai was born to a concubine, even if he was not competitive, wouldn't there still be lao Si Tang Ancient? Of course, the old four tang ancient, the old six tabai, the old nine babutai, the old eleven babuhai, the old thirteen Lai mubu and the old sixteen Feyangu are the same as Abai, so they lack a certain competitiveness.
Even if so many people are excluded, there are still five people in front of Dolgun, old wumang Gurtai, old seven Abatai, old eight emperor taiji, old ten derg class and old twelve Azig, which round to get Dorgon?
However, in order to gain Nurhaci's trust, Mang Gurtai killed his own mother with his own hands, but was disgusted by Nurhaci, so he withdrew from the competition sequence.
Abatai is not liked by Nurhaci on the one hand, and has average ability, so it is not competitive.
Because of the involvement of his elder brother Mang Gurtai, the Derg class was not able to become the ideal heir in nurhaci and the hearts of the people.
As a result, Dorgon's rivals were only Huang Taiji and Azig.
Not to mention the Emperor Taiji, even Azig, born in 1605, has an advantage over Dorgon, and he is also a brother of Dorgon, if he had to choose an heir between Azig and Dorgon, Nurhaci would probably choose Azig, right?
Therefore, nurhaci's heir candidate, how to turn can not turn Dolgun! Unless Nurhaci designated Dolgun as his heir before his death, or left a testament to make Dolgun the heir, then Dorgon would have the opportunity to become the Khan of the Later Jin Dynasty.
So why didn't Nurhaci appoint Dolgun as his heir before his death?
Two words, don't dare!
Dorgon, who was only 14 years old at the time, did not have the conditions to become an heir, and if Nurhaci forcibly made him the heir, could Daishan and Huang Taiji agree? I'm afraid not, once Dai Shan and Huang Taiji oppose them, Hou Jin is estimated to be another bloody storm.
Didn't Li Shimin of the Tang Dynasty also launch the Xuanwumen Rebellion and kill the crown prince Li Jiancheng? Didn't Zhu Di of the Ming Dynasty also launch the Battle of Jingnan and take the throne of his nephew Zhu Yunjiao?
If Nurhaci could live for ten more years, and then deliberately cultivate Dolgun to help Dorgon establish his military and political prestige, he would have let Dolgun be the heir, but Nurhaci did not have much time.
Therefore, for Nurhaci, the best choice is to let the people in the post-Golden State "vote with their feet" - anyway, there are few candidates, you look at it yourself, who is suitable for who to choose, we are not biased!
Therefore, Huang Taiji undoubtedly became the most suitable candidate, and even DaiShan had to admit this, so Dai Shan also fully supported Huang Taiji to inherit the Khan's throne.
After the Qing Dynasty entered the customs, Dolgun, who had become the regent, had many opportunities to take the Shunzhi Emperor and replace him, but why he did not take it was another story.