I don’t know the explanation, but it is very likely that Yu did not have a biological son. Historically, it is said that he had a son named Qi who founded the Xia Dynasty, but there is a mystery.
Shun succeeded him After Yao ascended the throne, he first got rid of Gun who wanted to rebel in the name of failing to control the floods and not using the emperor's orders, and killed him in Yushan. This is what "Shu·Hongfan" said, "In the past, Gun's flood flooded and spread its five elements. The emperor was furious and refused to allow Hongfan Jiuchu, and Yi Lun Youxu." Gun was killed, and Yu was succeeded. Regarding the reasons for the rise of Yu, "Huainanzi·Yuandao Pian" said: "In the past, Xia Gun built the city of Sanren, and the princes turned their backs on it, and there were cunning intentions overseas. Yu's rebellion in the world was to destroy the city and pools and scatter the wealth. He burned his armor and showed his virtue, and he gathered all the princes at Tushan and held the jade and silk banners to protect the people. support. This made Shun once again feel the serious threat to his power from Yu's revival. In order to eliminate future troubles, Shun carefully planned a good show of "borrowing chickens to lay eggs". Shun ordered Yu to continue to control the floods. In "Shu Gao Tao Mo", Dayu once said: "When I created Ruo Shi, I married Tushan, Xin Renguijia, Qi croaked and wept, and I was the son of Fu, but he was able to survive the desolation." Regarding the work. Among them, the four words "Xin Ren Gui Jia" were interpreted by Kong Anguo as: "On the Xin day, I married a wife, and on the fourth day of Jia, I went back to control the water." Later scholars often discussed this. On the surface, it seems that in order to complete the task of water control, Dayu abandoned his married wife three days after his wedding and hurriedly embarked on the journey of water control. Then, Qi was born in October. Is there such a coincidence in the world? We speculate that it may actually be because Yu could not disobey the emperor's order and there was no time to do so. "Historical Records·Xia Benji" said: "Yu injured his ancestor, Gun, and was punished because he failed to succeed. He worked hard and thought about it. He stayed away for thirteen years and did not dare to enter the house." Shun used the excuse of controlling floods to send Yu away. , took this opportunity to have an affair with Yu's wife Tushan, and gave birth to Qi. It turns out that the so-called "Qi" is actually the son of Emperor Shun! Once Qi's identity is re-clarified, many mysteries in the future will be solved. "Chu Song·Tian Wen" Hong Xingzu's supplementary annotation quoted "Huainanzi" and said: "Yu governed Hongshui, which led to Fuyuan Mountain and turned into a bear. He called Tushan and said: 'If you want to pay, you will come when you hear the sound of drums.' Yu When Tu Shan went to see Yu Fang, he turned into a stone at the foot of Songgao Mountain and said, "Return to my son!" "Suichaozi" cited in Volume 12 of "History" also says: "Yu married Tushan, governed Hongshui, passed Yuanyuan Mountain, and turned into a bear. When Tushan saw it, he went away in shame, and turned into stone at the foot of Songgao Mountain. "Yu said: 'Be my son!' The stone broke through the north and Qi was born." In fact, the core of this myth about the death of mother and son is not the birth of Qi, but the death of Yu's wife. When Tushan saw her husband, she was ashamed of her behavior and died after touching a mountain. This is the truth of the matter. Xia Qi-Qing Dynasty Hui The next thing was a matter of course. Emperor Shun, because his son Shangjun was unfaithful, and because Yu was good at controlling floods and could quell the rebellion of Sanmiao, he made a favor and said, "Recommend Yu to heaven. "As heir." This not only satisfied Yu's requirements, but also achieved his own goal. But there is no airtight wall in the world. Unfortunately, Emperor Shun's seemingly perfect plan was known to Yu's surnamed prince Youhu, so he strongly opposed Yu's transfer to Qi. At this time, Yu was in a dilemma. Although he doubted Qi's parentage, in ancient times, he was not able to do a paternity test like now. Moreover, he only had Qi, a nominal son, so he had to try his best to quell this rumor. Therefore, "Zhuangzi: Human World" said: "Yu attacked with a guard, and the country was weak and powerful, and he was punished and killed." As for whether Qi was really born by himself, he can only rely on the destiny of heaven, as quoted above from "Warring States Policy·Yan Ce" "Yu" said: "Yu benefited from it and took Qi as an official. When he was old, he thought that Qi was not enough to serve the world, so it was beneficial to spread it. Qi and his branch attacked Yi and took over the world." Qi was favored by both sides. * The same support, so "those who go to Hajj and sue for imprisonment will not benefit from it, but they will be enlightened and say: "I am the son of the king." "Those who sing don't sing for benefit but sing for enlightenment, saying: "My lord is your son."
"So, Xia Qi, as the "son of two monarchs", successfully inherited the throne.