II Chronicles 21:18

Jehoram became king of Judah and killed all his brothers, walking in the wicked ways of the house of Ahab because he had married Ahab's daughter, and as a result Edom and Libnah revolted against Judah. Elijah sent Jehoram a letter of judgment, and the LORD afflicted him with invasions and a painful, incurable bowel disease that eventually killed him, and he died unlamented.