Edom has been independent of Judah ever since. During this same period the city of Libnah also revolted.
Everything else that Jehoram did is recorded in [The History of the Kings of Judah.]
Jehoram died and was buried in the royal tombs in David's City, and his son Ahaziah succeeded him as king.
In the twelfth year of the reign of Joram son of Ahab as king of Israel, Ahaziah son of Jehoram became king of Judah
at the age of twenty-two, and he ruled in Jerusalem for one year. His mother was Athaliah, the daughter of King Ahab and granddaughter of King Omri of Israel.
Since Ahaziah was related to King Ahab by marriage, he sinned against the Lord, just as Ahab's family did.
King Ahaziah joined King Joram of Israel in a war against King Hazael of Syria. The armies clashed at Ramoth in Gilead, and Joram was wounded in battle.
He returned to the city of Jezreel to recover from his wounds, and Ahaziah went there to visit him.