Genesis 25:2-6

She bore to him Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah.

Jokshan fathered Sheba and Dedan. And the sons of Dedan were Asshurim, Letushim, and Leummim.

The sons of Midian were Ephah, Epher, Hanoch, Abida, and Eldaah. All of these were the sons of Keturah.

Now Abraham gave all that he had to Isaac;

but to the sons of his concubines, Abraham gave gifts while he was still living, and sent them away from his son Isaac eastward, to the land of the east.