What is XXX's brothers name?
Nebaioth
And these are the names of the sons of Ishmael, by their names, according to their generations: the first-born of Ishmael, Nebaioth; and Kedar, and Adbeel, and Mibsam, and Mishma, and Dumah, and Massa; 15 Hadad, and Tema, Jetur, Naphish, and Kedem; these are the sons of Ishmael, and these are their names, by their villages, and by their encampments; twelve princes according to their nations... (Book of Genesis 25:12-16) Nebaioth is also mentioned as the brother of Mahalath, one of Esau's wives: (1): ...and Esau saw that the daughters of Canaan pleased not Isaac his father; so Esau went unto Ishmael, and took unto the wives that he had Mahalath the daughter of Ishmael, Abraham's son, the sister of Nebaioth, to be his wife... (Book of Genesis 28:8-9) (2): ...
Dumah