Genesis 28:9
Esau went unto Ishmael and took unto the wives which he had, Mahalath, the daughter of Ishmael, Abraham's son, the sister of Nebajoth, to be his wife.
Genesis 36:3
and Bashemath, Ishmael's daughter, sister of Nebajoth.
Genesis 25:13-17
And these are the names of the sons of Ishmael, by their names, according to their lineages: the firstborn of Ishmael, Nebajoth, and Kedar, Adbeel, Mibsam,
Genesis 26:34
And Esau was forty years old when he took to wife Judith, the daughter of Beeri, the Hittite, and Bashemath the daughter of Elon, the Hittite:
Genesis 36:13
And these are the sons of Reuel: Nahath, Zerah, Shammah, and Mizzah; these were the sons of Bashemath, Esau's wife.
Genesis 36:18
And these are the sons of Aholibamah, Esau's wife: duke Jeush, duke Jaalam, duke Korah; these were the dukes that came of Aholibamah the daughter of Anah, Esau's wife.