2 Kings 1:17

So death came to him, as the Lord had said by the mouth of Elijah. And Jehoram became king in his place in the second year of the rule of Jehoram, son of Jehoshaphat, king of Judah; because he had no son.

2 Kings 3:1

And Jehoram, the son of Ahab, became king over Israel in Samaria in the eighteenth year of the rule of Jehoshaphat, king of Judah; and he was king for twelve years.

1 Kings 22:51

Ahaziah, the son of Ahab, became king over Israel in Samaria in the seventeenth year of the rule of Jehoshaphat, the king of Judah, and he was king over Israel for two years.

2 Kings 8:16-17

In the fifth year of Joram, the son of Ahab, king of Israel, Jehoram, the son of Jehoshaphat, king of Judah, became king.

Treasury of Scripture Knowledge

Summary

So he died according to the word of the LORD which Elijah had spoken. And Jehoram reigned in his stead in the second year of Jehoram the son of Jehoshaphat king of Judah; because he had no son.

Bible References

In the second

2 Kings 3:1
And Jehoram, the son of Ahab, became king over Israel in Samaria in the eighteenth year of the rule of Jehoshaphat, king of Judah; and he was king for twelve years.
2 Kings 8:16
In the fifth year of Joram, the son of Ahab, king of Israel, Jehoram, the son of Jehoshaphat, king of Judah, became king.
1 Kings 22:51
Ahaziah, the son of Ahab, became king over Israel in Samaria in the seventeenth year of the rule of Jehoshaphat, the king of Judah, and he was king over Israel for two years.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain