Who is the ancestor of Xiao?

Before the Cultural Revolution, Xiao Encyclopedia annotated Xiao's surname. First, it comes from the surname of the child and takes the country as the surname. After Wei Zi, the Song State in the Zhou Dynasty, Uncle Le made great contributions and became a vassal state in the Song Dynasty. So the address is in the northwest of Xiaoxian County, Anhui Province. It was broken by Chu in 597 BC. Children and grandchildren take the country as their surname. Secondly, in ancient times, Meng Kui became a scholar in Xiao Zhong after obtaining the surname of tribal leaders, and later generations took Xiao as their surname. The second one is earlier, so Xiao Mengkui should be the first one surnamed Xiao.