Genesis 25:1-4

The Death of Abraham 1Abraham had taken another wife, whose name was Keturah. 2She bore him Zimran, Jokshan, Medan, Midian, Ishbak and Shuah. 3Jokshan was the father of Sheba and Dedan; the descendants of Dedan were the Ashurites, the Letushites and the Leummites.

4The sons of Midian were Ephah, Epher, Hanok, Abida and Eldaah. All these were descendants of Keturah.