English Standard Version
When Jehoram had ascended the throne of his father and was established, he killed all his brothers with the sword, and also some of the princes of Israel.

American Standard Version
Now when Jehoram was risen up over the kingdom of his father, and had strengthened himself, he slew all his brethren with the sword, and divers also of the princes of Israel.

Berean Study Bible
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.

Douay-Rheims Bible
So Joram rose up over the kingdom of his father: and when he had established himself, he slew all his brethren with the sword, and some of the princes of Israel.

English Revised Version
Now when Jehoram was risen up over the kingdom of his father, and had strengthened himself, he slew all his brethren with the sword, and divers also of the princes of Israel.

King James 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.

World English Bible
Now when Jehoram was risen up over the kingdom of his father, and had strengthened himself, he killed all his brothers with the sword, and various also of the princes of Israel.

Young's Literal Translation
And Jehoram riseth up over the kingdom of his father, and strengtheneth himself, and slayeth all his brethren with the sword, and also -- of the heads of Israel.

2 Chronicles 21:4 Additional Translations ...