In the equestrian statue of Erasmo da Narni, called Il Gattamelata ("Slick Cat"; c. 1445-50; Piazza del Santo, Padua), Donatello, using the sole surviving ancient Roman equestrian, the Marcus Aurelius (Campidoglio, Rome), as a model, reinvented the mode of presenting a great general. He elevated the group on a high base, made the rider and horse convincingly proportionated (proportions) to each other, and gave the rider an alert and commanding energy.