2. Prince Kangxi has special reasons. It was during the Wu Sangui rebellion. The prince said that the country has the right of inheritance and the prince can only be the eldest son.
3. The second brother's mother is Heserihara, who entered the palace very early. She and Kangxi are childhood friends and have a good relationship.
4. The second brother's mother is the queen, his grandfather is a minister, his uncle's grandfather's demand map is the minister in charge of the Guards, and his great-grandfather Sony is the minister of records and records. The family is so powerful that it is impossible to discuss the affairs of the king through the meeting of the eldest son of the emperor.
5. After the death of Hesse Rihara, according to historical records, the second brother was cultivated by Kangxi himself, and even lived with him and educated himself (which was basically absent in the ancient royal family). Father and son have a good relationship.
6. The fundamental reason why the prince was abolished was that Kangxi loved the prince too much, which led to the contradiction between the rights of the prince and the emperor, the so-called "contradiction between the emperor and the treasury" (Kowloon seized the office because the prince took advantage of this contradiction. Without this contradiction, other governors are not qualified to seize positions.
PS: When the second brother was made a prince, Herseri Hala had been dead for two years.