2 Kings 8:25

In the twelfth year of Jehoram the son of Ahab, king of Israel, Ahaziah the son of Jehoram, king of Judah, began to reign.

2 Kings 9:29

And in the eleventh year of Jehoram the son of Ahab, Ahaziah began to reign over Judah.

2 Kings 8:16-17

And in the fifth year of Jehoram the son of Ahab king of Israel, Jehoshaphat being then king of Judah, Jehoram the son of Jehoshaphat king of Judah began to reign.

2 Chronicles 21:20-6

He was thirty-two years old when he began to reign, and he reigned in Jerusalem eight years, and departed without being desired. And they buried him in the city of David, but not in the tombs of the kings.

Treasury of Scripture Knowledge

Summary

In the twelfth year of Joram the son of Ahab king of Israel did Ahaziah the son of Jehoram king of Judah begin to reign.

Bible References

General references

2 Kings 8:16
And in the fifth year of Jehoram the son of Ahab king of Israel, Jehoshaphat being then king of Judah, Jehoram the son of Jehoshaphat king of Judah began to reign.
2 Kings 9:29
And in the eleventh year of Jehoram the son of Ahab, Ahaziah began to reign over Judah.
2 Chronicles 21:20
He was thirty-two years old when he began to reign, and he reigned in Jerusalem eight years, and departed without being desired. And they buried him in the city of David, but not in the tombs of the kings.