The Virgin and Child Appearing to Saint Peter, Saint Damasus, Saint Lawrence, and Saint Paul; the Martyrdom of Saint Lawrence in the Background. Artist: Federico Zuccaro (Zuccari) (Italian, Sant'Angelo in Vado 1540/42-1609 Ancona). Dimensions: 14 7/16 x 9 5/8in. (36.7 x 24.4cm). Date: 1566-68.A preparatory study by Federico Zuccaro for the high altarpiece in San Lorenzo in Damaso, Rome, a work commissioned from his older brother Taddeo Zuccaro (1529-1566) but actually executed by Federico and completed in 1568, nearly two years after Taddeo's death. The finished altarpiece differs from this project in that the upper half of the composition is occupied by a representation of the Coronation of the Virgin (see Gere 1966, fig. 2). John A. Gere has pointed out that Federico has combined in the present drawing two motifs studied separately by Taddeo in surviving drawings that relate to this project: the appearance of the Virgin to the four saints (inspired by Raphael's "Madonna di Foligno,"