Pirro Ligorio (c. 1512 – October 30, 1583) was an Italian architect, painter, antiquarian, and garden designer during the Renaissance period. He worked as the Vatican's Papal Architect under Popes Paul IV and Pius IV, designed the fountains at Villa d’Este at Tivoli for Cardinal Ippolito II d’Este, and served as the Ducal Antiquary in Ferrara. Ligorio emphasized and showed a deep passion for classical Roman antiquity. Source: Wikipedia (en)