Venetian humanist, who studied at the University of Padua philosophy, mathematics, astronomy and optics. In 1556 he published a commentary on the architectural treatise of the ancient Roman writer Vitruvius for which Andrea Palladio made the illustrations. At the same time Palladio designed for Barbaro and his brother Marcantonio at Maser (ca. 1555-1559) one of the loveliest of all villas. The Villa Barbaro (now Volpi) is set into a gentle hillside. //