Pirro Ligorio 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.

San Giovanni Decollato is a Roman Catholic church in Rome, sited on via di San Giovanni Decollato in the Ripa rione, a narrow road named after the church. Its construction took most of the 16th century.