Before the Hall of the Giants, we pass through the Hall of the Emperors, glorification of the greatness of ancient Rome, ideally preceded by the achievements of Alexander the Great, who is represented with his father Philip II of Macedon next to Julius Caesar and Augustus. It is not certain whether Primaticcio and Rinaldo Mantovano are the authors of these frescoes. Next to the four sovereigns there are two tondoes, which illustrate the virtues of a just ruler.