Portrait of Padre Matteo Guerri, bust-length, his head turned to the left

A study for the portrait of Guerri of the Congregazione dei Sacri Chiodi, depicted as a donor, in a large Crucifixion in the church of San Giorgio, Siena, painted in 1601-2. Padre Guerri had founded the church in 1585 and Vanni was a member of the congregation. A copy after the present drawing, possibly made in preparation for an engraving, is in the Louvre, F. Viatte, Dessins Toscans XVI^e- XVIII^e Siècles 1560-1640, Paris, 1988, no. 548, illustrated.