The execution of several “princes of Israel” (i. e. of Judah; see 2 Chronicles 20:34 note) implies that Jehoram’s brothers found supporters among the chief men of the country, and that Jehoram’s sole sovereignty was not established without a struggle.
Related Commentaries of 2 Chronicles 21:4
2 Chronicles 21:4
4 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.