Genesis 25:12-18

Now these are the records of the descendants of Ishmael, Abraham’s son, whom Hagar the Egyptian, Sarah’s maid, bore to Abraham; and these are the names of the [twelve] sons of Ishmael, named in the order of their births: Nebaioth, the firstborn of Ishmael, and Kedar, Adbeel, Mibsam, Mishma, Dumah, Massa, Hadad, Tema, Jetur, Naphish, and Kedemah. These are the sons of Ishmael and these are their names, by their settlements, and by their encampments (sheepfolds); twelve princes (sheiks) according to their tribes. [Foretold in Gen 17:20] Ishmael lived a hundred and thirty-seven years; then he breathed his last and died, and was gathered to his people [who had preceded him in death]. Ishmael’s sons (descendants) settled from Havilah to Shur which is east of Egypt as one goes toward Assyria; he settled opposite (east) of all his relatives.