Theft, the son of Hadad, of the Edomitish royal family. He was brought up in Pharaoh’s household. His mother was a sister of Tahpenes, the king of Egypt’s wife, mentioned in 1 Kings 11:20.
Genubath
1 verse
1 Kings
1 Kings 11:20
And the sister of Tahpenes bare him Genubath his son, whom Tahpenes weaned in Pharaoh's house: and Genubath was in Pharaoh's household among the sons of Pharaoh.
From Easton's Bible Dictionary
Matthew George Easton, 1897