Genesis 36:5-8

5and Oholibamah bore Jeush, Jalam, and Korah. These were Esau’s sons, who were born to him in the land of Canaan.

6Esau took his wives, sons, daughters, and all the people of his household, as well as his herds, all his livestock, and all the property he had acquired in Canaan; he went to a land away from his brother Jacob.

7For their possessions were too many for them to live together, and because of their herds, the land where they stayed could not support them.

8So Esau (that is, Edom) lived in the mountains of Seir.