Head of a bishop [from 'The Disputa']

A photograph of a drawing by Carlo Maratti currently in the Royal Library, Windsor Castle (RCIN 904249). The drawing reproduces the head and shoulders of a bishop standing on the left of the altar in the fresco of the Disputa (The Disputation of the Holy Sacrament), painted by Raphael around 1508-09 in the Stanza della Segnatura in the Vatican.