2 Chronicles 22:7-9

7But it was ordained by God that the downfall of Ahaziah should come about through his going to visit Joram. For when he came there, he went out with Jehoram to meet Jehu the son of Nimshi, whom the Lord had anointed to destroy the house of Ahab.

8And when Jehu was executing judgment on the house of Ahab, he met the princes of Judah and the sons of Ahaziah's brothers, who attended Ahaziah, and he killed them.

9He searched for Ahaziah, and he was captured while hiding in Samaria, and he was brought to Jehu and put to death. They buried him, for they said, "He is the grandson of Jehoshaphat, who sought the Lord with all his heart." And the house of Ahaziah had no one able to rule the kingdom.