17 So he died, according to the word of the Lord, which Elias spoke; and Joram, his brother, reigned in his stead, in the second year of Joram, the son of Josaphat, king of Juda, because he had no son.
2 Kings 1:17 Cross References - DouayRheims
1 Kings 22:51
51 (22:52) And Ochozias, the son of Achab, began to reign over Israel, in Samaria, in the seventeenth year of Josaphat, king of Juda, and he reigned over Israel two years.
2 Kings 3:1
1 And Joram the son of Achab, reigned over Israel, in Samaria, in the eighteenth year of Josaphat, king of Juda. And he reigned twelve years.