What does 2 Chronicles 22:9 mean?

Ahaziah tried to escape, but Jehu's men caught him while he was hiding in Samaria. They brought him to Jehu, who killed him. They buried him, because they said, 'He was a grandson of Jehoshaphat, who sought the Lord with all his heart.' No one in Ahaziah's family was left with the strength to rule the kingdom. 2 Chronicles 22:9 - Modern Text Bible

(Ahaziah is hunted down and killed, but he's given a burial out of respect for his grandfather Jehoshaphat. His death leaves Judah without a strong leader.)