Genesis 36:6-8

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

7For their possessions were too numerous for them to dwell together, and the land where they were residing was unable to support them because of their livestock.

8So Esau lived in Mount Seir (Esau is Edom).