Kangxi has always been around countless favored concubines, according to historical records, he had 4 empresses, 3 imperial concubines, 1 noble concubine in his lifetime, and the remaining concubines and below are as many as 50, and he is also merciful everywhere, so that many concubines have given birth to children for him. It is worth saying that one of his 35 sons, the most handsome, was once scolded by him as a traitor and a thief, imprisoned for 26 consecutive years but gave birth to 20 children.
He was the eldest son of the Emperor, Yin Zhen, in fact, he had 4 elder brothers before him, but none of them survived, so he obeyed and became the eldest son of the Emperor. Yin's mother was of the Huifei Nara clan, and her mother's family lineage was not bad. But if he wanted to compete for the throne, his advantage was far inferior to that of his younger brother Yin Rong. Yin Rong's biological mother was Kangxi's original pair of Hesheli clan, Hesheli clan accompanied Kangxi through the most difficult period of seizing power at the beginning of the reign, so the two had a very deep relationship, coupled with the death of Hesheli because of the difficult birth of Yin, Kangxi in order to comfort his beloved wife, and then specially made his son crown prince.
Kangxi's special treatment of Yin Rong made Yin Zhen very envious, and perhaps he also thought that one day, he would be able to get the same treatment as his brother, even status. After gradually growing up, he began to work harder, and I have to say that whether he is talented or acquired, he is not inferior to Yin Rong, so outstanding, he is gradually also looked at by his father and is reused.
According to the records of the French missionary Bai Jin, the eldest brother was very handsome in appearance and outstanding in all aspects, only 18 years old, he went to the Dzungar Department as a deputy general, and in the 35th year of the Kangxi Dynasty, he went to the Dzungar for the second time. With his extraordinary performance, he was made the King of Zhijun 2 years later, thus becoming the first of Kangxi's many sons to be crowned king. Later, in the 39th year of Kangxi, Kangxi went out to inspect Yongding Heti, and he also accompanied him, which shows that he was highly valued.
As a result, Yin Zhen became more and more confident, and gradually became dissatisfied, and began to covet the position of prince. It was also at this time that Yin Rong's poor performance caused Kangxi to be dissatisfied, and suo'ertu's downfall was the best evidence. Seeing this, Yin Yu confirmed his own ideas even more and began to secretly cultivate forces, such as naran Mingzhu.
After Kangxi 47 years, the crown prince was deposed, Yin Yu felt that the opportunity had come, so he took the opportunity to fall into the well and proposed to kill Yin Rong, but it caused Kangxi to be extremely disgusted with him, and it had to be said that this was the biggest mistake in his life. Coupled with the revelation of the implementation of the evil town, Kang was furious, directly accused him of being a traitor and thief, and was dismissed from all positions and imprisoned, so Yin Zhen never turned over again. However, after losing his freedom, he did not get discouraged, but began to concentrate on having children.
From the 47th year of Kangxi to his death (Yongzheng 12th year), he spent 26 years to give birth to 20 children, and this kind of fertility was beyond the reach of the rest of the princes. Yin Zhen finally died in the 12th year of Yongzheng, at the age of 63, and filled in 14 granddaughters and 15 grandchildren for Kangxi in his lifetime, which can also be regarded as a good branch for the royal family.
Reference: Draft History of the Qing Dynasty