In the twenty-seventh year of King Jeroboam of Israel King Azariah son of Amaziah of Judah began to reign.
He was sixteen years old when he began to reign, and he reigned fifty-two years in Jerusalem. His mother's name was Jecoliah of Jerusalem.
He did what was right in the sight of the Lord, just as his father Amaziah had done.
Nevertheless the high places were not taken away; the people still sacrificed and made offerings on the high places.
The Lord struck the king, so that he was leprous to the day of his death, and lived in a separate house. Jotham the king's son was in charge of the palace, governing the people of the land.
References for 2 Kings 15:5
Now the rest of the acts of Azariah, and all that he did, are they not written in the Book of the Annals of the Kings of Judah?
Azariah slept with his ancestors; they buried him with his ancestors in the city of David; his son Jotham succeeded him.