Cross References → Genesis 28:9

Esau went to Ishmael and married Mahalath, the sister of Nebaioth and daughter of Abraham’s son Ishmael, in addition to the wives he already had.

to Ishmael

Genesis 25:13-17
These are the names of the sons of Ishmael in the order of their birth: Nebaioth the firstborn of Ishmael, then Kedar, Adbeel, Mibsam, Mishma, Dumah, Massa, Hadad, Tema, Jetur, Naphish, and Kedemah. These were the sons of Ishmael, and these were their names by their villages and encampments—twelve princes of their tribes. Ishmael lived a total of 137 years. Then he breathed his last and died, and was gathered to his people.
Genesis 36:3,13,18
and Basemath daughter of Ishmael and sister of Nebaioth. ... These are the sons of Reuel: Nahath, Zerah, Shammah, and Mizzah. They are the grandsons of Esau’s wife Basemath. ... These are the sons of Esau’s wife Oholibamah: Chiefs Jeush, Jalam, and Korah. They are the chiefs descended from Esau’s wife Oholibamah, the daughter of Anah.

Mahalath

Genesis 36:3
and Basemath daughter of Ishmael and sister of Nebaioth.