Photomicrographs signature Click to enlarge Click to enlarge Under construction Under construction Back Roman emperor Domitian, Leonardo da Vinci, Titian, Tizian, Tiziano Vecellio, Roman emperors, Eleven Caesars, Undici Cesari, Domitianus, Isabella d’Este, Federico II Gonzaga, Mantova, Mantua, Italy, Francis I, Amboise France, Charles I England.