Description: The three paintings, in a modern frame, were originally side panels of an altarpiece, and it is possible that the modern writing that appears below the figures of the saints is a later copy of the original inscriptions. The saints are characterized by rough modeling, and a linear definition of volume, though their faces and garments are shaped by a delicate chiaroscuro. The simplification of the contour lines and the calligraphic incisiveness of the features of their faces are customary elements in the mature works of the artist, that is, after the Montemanaro altarpiece of 1358. It could be that the three saints made up one side of the triptych with the Madonna and Child with Saints Jerome and Bernardino of the Convento dell’Osservanza near Siena, now in the Pinacoteca of Siena.