2 Chronicles 22:1-9

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. So he did evil in the sight of the LORD like the house of Ahab, for they were his advisers after the death of his father, resulting in his destruction. He also walked in accordance with their advice, and he went with Jehoram the son of Ahab king of Israel to wage war against Hazael king of Aram (Syria) at Ramoth-gilead. And the Arameans wounded Joram (Jehoram). [2 Kin 8:28ff] Then he returned to Jezreel to recover from the wounds they had inflicted on him at Ramah when he fought against Hazael king of Aram. And Ahaziah, the son of Jehoram king of Judah, went down to see Jehoram the son of Ahab in Jezreel, because he was sick. But the downfall of Ahaziah was ordained by God, in that he went to Joram (Jehoram). For when he arrived there he went out [as an ally] with Jehoram against Jehu the son of Nimshi, whom the LORD had anointed to destroy the house of Ahab. It came about that when Jehu was executing judgment on the house of Ahab, he found the leaders of Judah and the sons of Ahaziah’s [murdered] brothers ministering to Ahaziah, and he killed them. Jehu also searched for Ahaziah, who was hiding in Samaria; he was captured, brought to Jehu, and put to death. They buried him, for they said, “After all, he is the grandson of Jehoshaphat, who sought the LORD with all his heart.” So the house of Ahaziah had no one left to retain the power to rule over the kingdom.