2 Chronicles 21:4 in the King James Version
Now when Jehoram was risen up to the kingdom of his father, he strengthened himself, and slew all his brethren with the sword, and divers also of the princes of Israel.
Context
3 Their father gave them great gifts of silver, of gold, and of precious things, with fortified cities in Judah; but he gave the kingdom to Jehoram, because he was the firstborn.
4 Now when Jehoram had risen up over the kingdom of his father, and had strengthened himself, he killed all his brothers with the sword, and also some of the princes of Israel.
5 Jehoram was thirty-two years old when he began to reign, and he reigned eight years in Jerusalem.