“In the twelfth yeere of Ahaz, king of Iudah, began Hoshea the sonne of Elah to reigne in Samaria, ouer Israel nine yeeres.”
1611 King James Version (KJV)
17:1 To reign - He usurped the kingdom in Ahaz's fourth year; but either was not owned as king, by the generality of the people; or was not accepted and established in his kingdom, 'till Ahaz's twelfth year. Nine - After his confirmation and peaceable possession of his kingdom: for in all, he reigned seventeen, or eighteen years; twelve with Ahaz, who reigned sixteen years, and six with Hezekiah.