2 Chronicles 22:1-3

Then the inhabitants of Jerusalem made Ahaziah, his youngest son, king in his place, because the band of men (raiders) who came with the Arabs to the camp had killed all the older sons. So Ahaziah the son of Jehoram king of Judah began to reign. Ahaziah was twenty-two years old when he became king and he reigned one year in Jerusalem. His mother’s name was Athaliah, a granddaughter of Omri. [2 Kin 8:26] He also walked in the ways of the house of Ahab, for his mother was his adviser [and she encouraged him] to act wickedly.