2 Chronicles 21:2-4

Lexham English Bible

² Now he had brothers, the sons of Jehoshaphat: Azariah, Jehiel, Zechariah, Azariah, Michael, and Shephatiah. All these were the sons of Jehoshaphat, king of Israel. ³ And their father gave to them many gifts of silver, gold, and valuables, with fortified cities in Judah, but he gave the kingdom to Jehoram, for he was the firstborn. ⁴ When Jehoram ascended to the kingdom of his father, he strengthened himself and murdered all his brothers with the sword, and even some of the princes of Israel.