The round stained-glass window in the Western façade dates from 1549 and represents the Last Supper. It is the work of Pastorino de' Pastorini. [Photo Credit: Flickr Le Monde1] • Dating back to 1288, this stained glass window is among the oldest in all of Italy. It was crafted by Duccio di Buoninsegna, an outstanding painter of the era. The age and deterioration of this window had caused anxiety for some time. Finally, in 1996, this 18-foot-diameter window was carefully removed in a series of sections and taken across the piazza into another building to undergo a painstaking 3-year conservation project. Much of the leading that held the stained glass in place was not original and was in very poor shape. However, nearly all of the glass was determined to be original. The biggest challenge of the restoration was preserving the brownish grisaille paint that the artist used to paint the facial details of the figures. The central panel shows the Assumption, which is the church’s titular feast, with the Dormition of the Virgin below, and Her Coronation above it. To the left of the central panel are the Apostle Bartholomew, then much venerated in Siena as a protector of the city, and St Ansanus, its first evangelizer; to the right, the early local martyrs Crescentianus and Savinus; at the corners, the Four Evangelists. [Photo Credit: Wikimedia José Luiz] The photos below show the West face [Photo Credit: Flickr Le Monde1], and an inside view of the East window (not easily seen from outside) [Photo Credit: Wikimedia Tango7174]