Qin Ershi killed almost all his brothers and sisters, but why did he leave Fu Su's son Zi Ying?

After Hu Hai acceded to the throne, he aimed the butcher's knife at the Qin royal family and almost killed all his brothers and sisters. Why didn't he kill Qin Sanshi Ziying?

Who is Ziying?

The first statement: According to Historical Records * Biography of Qin Shihuang, Zi Ying is Hu Hai's nephew. From the Eastern Han Dynasty to modern times, this expression was often used. Even Ci Hai and Ci Yuan, revised and published in recent years, all agree that Zi Ying is the son of Qin Ershi's brother, and point out that he is the son of Fu Su. That is, the grandson of Qin Shihuang and the nephew of Hu Hai.

However, in terms of age, this is impossible. Because Ziying murdered Zhao Gao with two sons. All sons can participate in the murder, which means they are adults. Therefore, Ziying is at least 40 years old.

Qin Shihuang was only 50 years old when he died. It is impossible to have such a big grandson.

The second statement: According to Records of the Historian * Biography of Lisi, Zi Ying is Hu Hai's uncle. It is recorded in the book: "Gao (Zhao Gao) called the first emperor's brother and gave him a seal. Zi Ying acceded to the throne. "

In other words, Zi Ying is the younger brother of Qin Shihuang. In terms of age, I think this statement is more reliable.

Why didn't Hu Hai kill Zi Ying? In this way, we can understand why Hu Hai didn't kill Zi Ying. Hu Hai just worried about his peers or the next generation of the Qin royal family usurping the throne, and never thought that he would be inherited by the previous generation after his death.

Hu Hai had no ambition, and it was impossible to kill all the ancestors of the 18th generation of Qin royal family.