2 Chronicles 21:2-4

Darby Translation

² And he had brethren, the sons of Jehoshaphat: Azariah and Jehiel, and Zechariah, and Azariah, and Michael, and Shephatiah: all these were sons of Jehoshaphat king of Israel.

³ And their father had given them great gifts of silver and of gold and of precious things, besides fortified cities in Judah; but the kingdom he gave to Jehoram, for he was the firstborn.

⁴ And Jehoram established himself over the kingdom of his father, and strengthened himself; and he slew all his brethren with the sword, and [certain] also of the princes of Israel.