Ji surname is the ancestor.

, Jia,,. According to the records of ancient books and documents, we can also see the humble status of Yan State. Emperor Yan's blood is from Zhao Gong? #93; To YanHuiHou, nine nameless overflow, YanHuiHou nameless overflow below. The historical events of Yan State were not recorded until more than 100 years after the Spring and Autumn Period at the latest. The first major event recorded was that Qi Shan Rong passed through Yan State, and the second major event was that the monarch fled to Qi State with the help of Qi historians. At that time, there was a Yan State named Wa in Jixian County, Henan Province, which was called Southern Yan in history. At first, the monarch's name was Bo and his surname was Wa. According to Zuo Zhuan, the Southern Yan State is called Yan and the Northern Yan State is called Yan, but the history of the Southern Yan State is much earlier than that of the Northern Yan, which is often recorded. After Bo Yan's descendants left their daughters, they were called Ji, and their surnames were passed down from generation to generation. Therefore, the descendants of Ji respect their ancestors.