Genesis 28:9
Esau went to Ishmael, and took, besides the wives that he had, Mahalath the daughter of Ishmael, Abraham's son, the sister of Nebaioth, to be his wife.
Genesis 36:3
and Basemath, Ishmael's daughter, sister of Nebaioth.
Genesis 25:13-17
These are the names of the sons of Ishmael, by their names, according to the order of their birth: the firstborn of Ishmael, Nebaioth, then Kedar, Adbeel, Mibsam,
Genesis 26:34
When Esau was forty years old, he took as wife Judith, the daughter of Beeri the Hittite, and Basemath, the daughter of Elon the Hittite.
Genesis 36:13
These are the sons of Reuel: Nahath, Zerah, Shammah, and Mizzah. These were the sons of Basemath, Esau's wife.
Genesis 36:18
These are the sons of Oholibamah, Esau's wife: chief Jeush, chief Jalam, chief Korah: these are the chiefs who came of Oholibamah the daughter of Anah, Esau's wife.