This set of vestments, comprising a chasuble, stole, maniple, chalice veil and a burse, was made for the cardinal whose arms are seen on the chasuble’s back orphrey. Although not woven or embroidered with silver and silver-gilt threads, it was nevertheless well-suited for a ‘Prince of the Church’; it is tailored from a fine ivory taffeta and the entire ornament is most minutely and delicately worked with pen and Indian ink. As the minuscule inscription in the bottom of the front orphrey reveals, it was done by Saverio Caselli: a priest, architect and cartographer in the service of the Papal States. Working mostly in Rome and Benevento, Caselli held numerous prestigious roles and served as an honorary chamberlain to Pope Pius VII. As a renowned archaeologist and antiquarian he authored many detailed drawings of ancient Roman monuments, such as the Roman theatre and the Arch of Trajan in Benevento. It took him six years to finish the intricate and laborious task of ornamenting this extraordinary set of vestments. Caselli’s remarkable talent and interest in antiquities are reflected in the outstanding decorations which were drawn on the silk with an utmost precision, leaving a misleading first impression that they were achieved by printing.