Bede : And the Horites in the mountains of Seir. Indeed, these mountains, along with the neighboring regions, were possessed by the sons of Esau, who was also called Seir, because he was hairy, after the Horites were expelled. However, it seems likely that it was not he (i.e., Esau) himself, but another Seir from whom the mountains of Seir took their name: namely, the patriarch of the Horites, from whose lineage Esau took a wife. The Scripture says in the following: "Esau took wives from the daughters of Canaan, Ada the daughter of Elon the Hittite, and Oholibamah the daughter of Anah the son of Zibeon the Hivite" (Genesis 36:2). What this lineage was or from where it originated is revealed shortly after, when, enumerating the lineage of Esau, it concludes thus: "These are the chiefs of Oholibamah the daughter of Anah, wife of Esau, these are the sons of Esau, and these are their chiefs. He is Edom"; and immediately a new title is attached, which says: "These are the sons of Seir the Horite, inhabitants of the land, Lotan, Shobal, and Zibeon." And soon after: "And these are the sons of Zibeon, Aiah and Anah. This is Anah who found the hot springs in the wilderness while he was pasturing the donkeys of Zibeon, his father, and he had a son Dishan and a daughter Oholibamah." Therefore, when Esau had a wife from the lineage of the Horites, Oholibamah the daughter of Anah the son of Zibeon the son of Seir, it is established that the mountains of Seir, where the Horites were struck down, did not take their name from Esau who began to possess those places long after he was born, but from Seir the patriarch of those same Horites. — Commentary on Genesis (Hexaemeron)