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.
Smith's Dictionary
the son of Hadad, an Edomite of the royal family, by an Egyptian princess, the sister of Tahpenes, the queen of the Pharaoh who governed Egypt in the latter part of the reign of David. (1 Kings 11:20) comp. 1Kin 11:16 (B.C. 1015.)