Sassetta, the subtle genius from Siena, revolutionized Italian painting with an altarpiece for the small Tuscan town of Borgo San Sepolcro in 1437–1444. Originally standing some six yards high, double
The city of Siena, one of Italy's major artistic centers, was home to many celebrated painters, among them Duccio, Simone Martini, Ambrogio and Pietro Lorenzetti, Sassetta and Beccafumi. This generous