Charles Ellicott Commentary Genesis 36:16

"chief Korah, chief Gatam, chief Amalek: these are the chiefs that came of Eliphaz in the land of Edom; these are the sons of Adah." — Genesis 36:16 (ASV)

Duke Korah. —The Samaritan Pentateuch rightly omits this name. He was a son of the Horite wife, Aholibamah.