Is Yan He the same surname?

People surnamed Yan are because some of their descendants live in Yanxiang, and their descendants take Yan as their surname.

The surname Yan is because some of his descendants live in Yanxiang, and his descendants take Yan as their surname.

The ancestors of people surnamed Yan are distributed in Shaanxi and Gansu, and the word Yan is changed from Zhuang, so it is widely distributed.

To sum up, Yan and Yan should be of the same ancestry. They are descendants of Zhou Wuwang, and they should be of the same ancestry.

Yan's ancestors were distributed in Gansu, Shaanxi and Shaanxi, so these three names are homologous.