 On the interior wall of the facade, are late 14th-century frescoes depicting "Life of Saints Phillip, James the Minor, and Catherine" (1395-1400) by Spinello Aretino.Also on this wall, Spinello's son, Parri di Spinello painted the "Crucifixion and Three Saints".The Dragomanni chapel, built from the 14th century, has an altar by Giovanni di Francesco (1368) and frescoes of ‘’Jesus among the Doctors" by Gregorio and Donato di Arezzo.