2 Kings 1:17

And he dieth, according to the word of Jehovah that Elijah spake, and Jehoram reigneth in his stead, in the second year of Jehoram son of Jehoshaphat king of Judah, for he had no son.

2 Kings 3:1

And Jehoram son of Ahab hath reigned over Israel, in Samaria, in the eighteenth year of Jehoshaphat king of Judah, and he reigneth twelve years,

1 Kings 22:51

Ahaziah son of Ahab hath reigned over Israel in Samaria in the seventeenth year of Jehoshaphat king of Judah, and reigneth over Israel two years,

2 Kings 8:16-17

And in the fifth year of Joram son of Ahab king of Israel -- and Jehoshaphat is king of Judah -- hath Jehoram son of Jehoshaphat king of Judah reigned;

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 son of Ahab hath reigned over Israel, in Samaria, in the eighteenth year of Jehoshaphat king of Judah, and he reigneth twelve years,
2 Kings 8:16
And in the fifth year of Joram son of Ahab king of Israel -- and Jehoshaphat is king of Judah -- hath Jehoram son of Jehoshaphat king of Judah reigned;
1 Kings 22:51
Ahaziah son of Ahab hath reigned over Israel in Samaria in the seventeenth year of Jehoshaphat king of Judah, and reigneth over Israel two years,