2 Chronicles 22:8

And it came to pass, that when … and found … that ministered to Ahaziah, he slew them R.V. And it came to pass, when … that he found … ministering to Ahaziah, and slew them.

the sons of the brethren of Ahaziah In 2 Kings 10:13, "the brethren (i.e. kinsmen) of Ahaziah." The brethren (in the strict sense of the word) of Ahaziah had already been killed (2 Chronicles 22:1).

that ministered R.V. ministering. According to 2 Kin. they were going to "salute the children of the king and the children of the queen" (probably a courtly expression for "salute the king and the queen").