The Eleven Caesars was a series of eleven painted half-length portraits of Roman emperors made by Titian in 1536-40 for Federico II, Duke of Mantua. They were among his best-known works, inspired by the Lives of the Caesars by Suetonius. Titian's paintings were originally housed in a new room inside the Palazzo Ducale di Mantova. Bernardino Campi added a twelfth portrait in 1562.