2 Chronicles 21:1-7

And Jehoshaphat slept with his fathers, and was buried with his fathers in the city of David: and Jehoram his son reigned in his stead. And he had brethren, the sons of Jehoshaphat: Azariah, and Jehiel, and Zechariah, and Azariah, and Michael, and Shephatiah; all these were the sons of Jehoshaphat king of Israel. And their father gave them great gifts, of silver, and of gold, and of precious things, with fortified cities in Judah: but the kingdom gave he to Jehoram, because he was the first-born. Now when Jehoram was risen up over the kingdom of his father, and had strengthened himself, he slew all his brethren with the sword, and divers also of the princes of Israel. Jehoram was thirty and two years old when he began to reign; and he reigned eight years in Jerusalem. And he walked in the way of the kings of Israel, as did the house of Ahab; for he had the daughter of Ahab to wife: and he did that which was evil in the sight of Jehovah. Howbeit Jehovah would not destroy the house of David, because of the covenant that he had made with David, and as he promised to give a lamp to him and to his children alway.