KJV: Two and twenty years old was Ahaziah when he began to reign; and he reigned one year in Jerusalem. And his mother's name was Athaliah, the daughter of Omri king of Israel.
NASB: Ahaziah was twenty-two years old when he became king, and he reigned one year in Jerusalem. And his mother's name was Athaliah the granddaughter of Omri king of Israel.
KJV: And the seventh year Jehoiada sent and fetched the rulers over hundreds, with the captains and the guard, and brought them to him into the house of the LORD, and made a covenant with them, and took an oath of them in the house of the LORD, and shewed them the king's son.
NASB: Now in the seventh year Jehoiada sent and brought the captains of hundreds of the Carites and of the guard, and brought them to him in the house of the LORD. Then he made a covenant with them and put them under oath in the house of the LORD, and showed them the king's son.