Joram (Ahab’s son) was in his fifth year as king of Israel when Jehoram, son of King Jehoshaphat of Judah, began to rule. Jehoram ruled while Jehoshaphat was still king of Judah.
But the illegal worship sites were not torn down. The people continued to sacrifice and burn incense at these worship sites. Jehoshaphat made peace with the king of Israel.
But Jehosheba, daughter of King Jehoram and sister of Ahaziah, took Ahaziah’s son Joash. She saved him from being killed with the king’s other sons, and in a bedroom she hid him and his nurse from Athaliah. So Joash wasn’t killed
The people of Jerusalem made Jehoram’s youngest son Ahaziah king in his place, because the raiders who came to the camp with the Arabs had killed all the older sons. So Jehoram’s son Ahaziah became king of Judah.