1 Kings 11:19-20
11:19 Pharaoh liked Hadad so well he gave him his sister-in-law (Queen Tahpenes’ sister) as a wife.
11:20 Tahpenes’ sister gave birth to his son, named Genubath. Tahpenes raised him in Pharaoh’s palace; Genubath grew up in Pharaoh’s palace among Pharaoh’s sons.