Genesis 19:38
19:38 The younger daughter also gave birth to a son and named him Ben-Ammi.
He is the ancestor of the Ammonites of today.
Genesis 36:10
36:10 These were the names of Esau’s sons:
Eliphaz, the son of Esau’s wife Adah, and Reuel, the son of Esau’s wife Basemath.