He is the father of Tikvah.
2 Kings 22:14So Hilkiah the priest, Ahikam, Akbor, Shaphan, and Asaiah went to Huldah the prophetess, the wife of Shallum son of Tikvah, the son of Harhas, keeper of the wardrobe. She lived in Jerusalem in the Second District. They spoke with her.
He is the father of Tokvah and is also recorded as Hasrah.
2 Chronicles 32:22Thus the Lord saved Hezekiah and the inhabitants of Jerusalem from the hand of Sennacherib king of Assyria and from the hand of all their enemies, and he provided for them on every side.