Genesis 36:33-34

36:33 When Bela died, Jobab the son of Zerah from Bozrah reigned in his place.

36:34 When Jobab died, Husham from the land of the Temanites reigned in his place.

Genesis 10:29

10:29 Ophir, Havilah, and Jobab. All these were sons of Joktan.