2 Kings 8:25

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

2 Kings 9:29

Now it was, in the eleventh year of Joram son of Ahab, that Ahaziah began to reign over Judah.

2 Kings 8:16-17

Now, in the fifth year of Joram son of Ahab, king of Israel, Jehoshaphat, having been king of Judah, Jehoram, son of Jehoshaphat king of Judah, began to reign.

2 Chronicles 21:20-6

Thirty-two years old, was he when he began to reign, and, eight years, reigned he in Jerusalem, - and went his way - unregretted, and, though they buried him in the city of David, yet, not in the sepulchres 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
Now, in the fifth year of Joram son of Ahab, king of Israel, Jehoshaphat, having been king of Judah, Jehoram, son of Jehoshaphat king of Judah, began to reign.
2 Kings 9:29
Now it was, in the eleventh year of Joram son of Ahab, that Ahaziah began to reign over Judah.
2 Chronicles 21:20
Thirty-two years old, was he when he began to reign, and, eight years, reigned he in Jerusalem, - and went his way - unregretted, and, though they buried him in the city of David, yet, not in the sepulchres of the kings.