Parallel
2 Chronicles 21:4
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
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.
When Jehoram had established himself over his father’s kingdom, he strengthened himself by putting to the sword all his brothers along with some of the princes of Israel.