The Virgin Protectress of the City of Siena; 1588; Pen and brown ink; brush and brown wash; over black chalk; on light brown paper; 8 3/16 x 10 3/4in. (20.8 x 27.3cm); Drawings; Francesco Vanni (Italian; Siena 1563-1610 Siena); Vanni studied painting briefly in Rome; but; before his twentieth birthday; he was back home in Siena; where he pursued a long career as a painter of altarpieces and decorations for public buildings. In this brisk and luminous sketch; the Virgin appears in glory; her right hand raised in benediction; while Saint Bernardino and Saint Catherine of Siena intercede for their fellow citizens