Genealogy says: "Gu, Earl, Earl of Xia and Shang Dynasties, a derivative of Yao surnamed Gui after Shun. Today, there is an old city in the southeast of Fan County, which is also his land, and his descendants take the fief as their surname. Also: Sun Minjun, the thirteenth King of Yue, shook, and Dong Ou was named in Han Dynasty. Shazi was Gu, and he lived in Huiji (now Wuxian County, Suzhou) in the early Han Dynasty, also known as Gu. " This passage is the origin of "looking north" and "looking south" Gu surname of Yu nationality has a long history, and in the process of reproduction and development, Gu celebrities come forth in large numbers. In addition, during the Wei, Jin, Southern and Northern Dynasties, Gu was also one of the four surnames of Wu Jun, represented by Gu Yong, which had a decisive influence on the politics and military affairs of the Jin Dynasty.