Chronicles II 22:9

9 And he gave orders to seek Ochozias: and they took him while he was healing his wounds in Samaria, and they brought him to Jeu, and he slew him; and they buried him, for they said, He is the son of Josaphat, who sought the Lord with all his heart. So there was none in the house of Ochozias to secure their power in the kingdom.

Chronicles II 22:9 Meaning and Commentary

Ver. 9-11. And he sought Ahaziah
Who fled on Joram's being wounded by Jehu:

and they caught him;
the soldiers of Jehu, who were sent after him, and bid to smite him:

for he was hid in Samaria;
either in some part of the kingdom of Samaria, or in the city itself, whither he fled:

and brought him to Jehu:
who was at Jezreel, (See Gill on 2 Kings 9:27),

and when they had slain him they buried him;
not at Jezreel, but delivered him to his servants to carry him to Jerusalem, and there bury him in the sepulchres of his fathers, ( 2 Kings 9:28 ) ,

because, said they, he is the son of Jehoshaphat, who sought the Lord
with all his heart;
a grandson of his, and therefore out of respect to the memory of his name, these being religious men, ordered his burial there:

so the house of Ahaziah had no power to keep still the kingdom;
his brethren and their sons being slain, and his own children being young fell into the hands of Athaliah, who murdered them all, but one, hid by his aunt, and so got the government into her own hands, as may be observed in the following verses, ( 2 Chronicles 22:10-12 ) .

Chronicles II 22:9 In-Context

7 And destruction from God came upon Ochozias in coming to Joram; for when he had come, Joram went out with him against Jeu the son of Namessei, the anointed of the Lord against the house of Achaab.
8 And it came to pass, when Jeu was taking vengeance on the house of Achaab, that he found the princes of Juda and the brethren of Ochozias ministering to Ochozias, and he slew them.
9 And he gave orders to seek Ochozias: and they took him while he was healing his wounds in Samaria, and they brought him to Jeu, and he slew him; and they buried him, for they said, He is the son of Josaphat, who sought the Lord with all his heart. So there was none in the house of Ochozias to secure their power in the kingdom.
10 And Gotholia the mother of Ochozias saw that her son was dead, and she arose and destroyed all the seed royal in the house of Juda.
11 But Josabeeth, the daughter of the king, took Joas the son of Ochozias and rescued him secretly out of the midst of the sons of the king that were put to death, and she placed him and his nurse in a bedchamber. So Josabeeth daughter of king Joram, sister of Ochozias, wife of Jodae the priest, hid him, and she hid him from Gotholia, and she did not slay him.

The Brenton translation of the Septuagint is in the public domain.