As for the surname Gongsun, there are many sources. During the Spring and Autumn Period and the Warring States Period, the son of the Zhou Emperor can be called a prince, the son of a vassal is called a son, and the son of a son is called a sun. For example, Zheng Zhuanggong's younger brother's son is called GongSunLiu. Zi chan was a very famous politician of Zheng in the Spring and Autumn Period and the Warring States Period, and was the grandson of Zheng Mugong, so his name was also Gongsun Qiao. During the Qin and Han Dynasties, some ethnic minorities entered the Han Dynasty, and some of them were named Gongsun.