The story of the sons of Joash, as well as the many prophecies about him and about the restoration of God's Temple, are recorded in the Commentary on the Book of the Kings. His son Amaziah took over as king.
(The supporters of that wicked woman Athaliah had broken into God's Temple and had stolen the holy objects of the Lord's Temple and used them to worship the Baals.)
They paid masons and carpenters, and provided food and drink and olive oil to the people of Sidon and Tyre for them to bring cedar logs from Lebanon to Joppa by sea, as King Cyrus of Persia had authorized.