Song Renzong has no sons. How did this happen? What about the throne?

Song Renzong is not childless, but it is also inevitable that his son died at birth. He had many daughters, but in ancient times, his daughters could not become kings, so he had to find another way out and finally passed the throne to his nephew. In ancient times, there was such a system that only the eldest son could become a prince, and this eldest son was the oldest son of all kings. In my opinion, this system has great defects and is easy to cause a lot of unnecessary troubles. For example, one is the eldest son, but he is not the eldest son, and the other prince is the eldest son, but he is not the eldest son, so it is easy to have differences and make brothers turn against each other. There are many such cases in history, all of which were forced to seize the position by illegal means.

However, Song Renzong did not have the above problems, but he lacked a superior son. There are 3,000 beautiful women in Song Renzong's harem, but only three have given birth to sons for him. However, the son born may have died young because of relatively poor conditions or poor skills at that time, so the position of the prince has been vacant. Song Renzong himself is a wise king, who benefits the people and handles state affairs with ease, and is deeply loved by the people and appreciated by ministers. Because of this, people may forget the status of this prince. But there is no way, this day will come, and the position of the prince must be determined. Even if there are100000 people in Song Renzong who don't want to, the position of the prince can only be passed on to his nephew. From here, we can also see that Song Renzong is a wise gentleman. For the development of the country, he can only give up his family for everyone. The system is dead and man is alive, so his handling has been praised by everyone. When a king should be people-oriented and pursue the interests of the people as the primary purpose, he can become a really good king. Song Renzong may be the only person in history who can do this.