Yi surname is one of China surnames, and Baijia surname ranks 239th. The origin of Yi surname, the compilation of Yuan and surname? 6? 1 Willow Branch records: "Yi Yin, a descendant of the Qi family of Emperor Yao, is famous for his affectionate and vigorous ..." "Compilation of Surnames" says: "The surname of Emperor Yao is Yin, and the descendants of Yin are famous for their affection, and their surname is Yi." "San Fu Jiu Shi" records: "Yao was born in because he thought he was a teacher. "Yi people are descendants of Emperor Yao, and of course they are descendants of the Yellow Emperor. However, the Yi nationality is a multi-ethnic and multi-source surname group!