1 Chronicles 1:32-33

Keturah, Abraham’s slave woman, gave birth to Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah. Jokshan’s sons were Sheba and Dedan. Midian’s sons were Ephah, Epher, Hanoch, Abida, and Eldaah. All these were descendants of Keturah.