Study for a Seated Prelate (Saint Gergory the Great), 1685?86, Black chalk, highlighted with white chalk, on blue-gray paper, 15-3/8 x 10-1/4 in. (39. 1 x 26. 0 cm), Drawings, Carlo Maratti (Italian, Camerano 1625?1713 Rome), The drawing represents a study, with slight variations, for the seated figure of Saint Gregory the Great that appears at right on ?The Dispute of the Doctors of the Church over the Immaculate Conception?, painted by Carlo Maratti and installed as the main altarpiece of the Cybo chapel in the church of Santa Maria del Popolo, Rome