Genesis 28:9 NIV
9 so he went to Ishmael and married Mahalath, the sister of Nebaioth and daughter of Ishmael son of Abraham, in addition to the wives he already had.
Genesis 36:2-3 NIV
2 Esau took his wives from the women of Canaan: Adah daughter of Elon the Hittite, and Oholibamah daughter of Anah and granddaughter of Zibeon the Hivite— 3 also Basemath daughter of Ishmael and sister of Nebaioth.
In the above texts, these two women are said to be the wives of Esau and both of them are said to be sisters of Nebaoith, but in the other text Basemath is also called the daughter of Elon the Hittite
Genesis 26:34 NIV
34 When Esau was forty years old, he married Judith daughter of Beeri the Hittite, and also Basemath daughter of Elon the Hittite.
Could this be referring to one and the same person?