2 Kings 8:18, 26-27

And he walked in the way of the kings of Israel, as did the house of Ahab: for the daughter of Ahab was his wife: and he did evil in the sight of the LORD.

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. And he walked in the way of the house of Ahab, and did evil in the sight of the LORD, as did the house of Ahab: for he was the son in law of the house of Ahab.