Qin Shihuang's name was Ying Zheng, but why was his eldest son named Fu Su? The second son's name is Hu Hai?

During the Spring and Autumn Period and the Warring States Period, men generally had no surnames.

Qin Shihuang (259 BC-265438 BC+00 BC) won the surname Zhao and was named Zheng. Born in Handan (now Hebei), the capital of Zhao State, it is also called (before Qin Dynasty, the surname was not unified, the male surname was Shi and the female surname was Zheng). )

Fu Su: The eldest son of Qin Shihuang (? —former 2 10), won the surname of Fu Su. In the pre-Qin period of Fuxi, men used surnames instead of surnames. Although it's Yuan's surname, it's not Yuan Fusu. A Fu Su's son, or Fu Su's son.

Hu Hai, namely Qin Ershi (230 BC-207 BC), won the surname of Hu Hai, and was also called Emperor II from 2 10 BC to 207 BC. He is the eighteenth son of Qin Shihuang and the younger brother of Fu Su, the son of Qin Shihuang.