2 Chronicles 21:1-4

When Jehoshaphat died, he was buried with his ancestors in the City of David. Then his son Jehoram became the next king. Jehoram’s brothers—the other sons of Jehoshaphat—were Azariah, Jehiel, Zechariah, Azariahu, Michael, and Shephatiah; all these were the sons of Jehoshaphat king of Judah. Their father had given each of them valuable gifts of silver, gold, and costly items, and also some of Judah’s fortified towns. However, he designated Jehoram as the next king because he was the oldest. But when Jehoram had become solidly established as king, he killed all his brothers and some of the other leaders of Judah.