1 Kings 22:41
And Jehoshaphat the son of Asa began to reign over Judah in the fourth year of Ahab king of Israel.
Nave's Topical Index—AKJV

2 Chronicles 20:31
And Jehoshaphat reigned over Judah: he was thirty and five years old when he began to reign, and he reigned twenty and five years in Jerusalem. And his mother's name was Azubah the daughter of Shilhi.
Nave's Topical Index—AKJV