The outside wall to the right of the entrance shows fragments of two frescoes by unknown Umbrian artists. In the 19th century a door was opened in the same wall, to control the flow of pilgrims. The left outside wall includes the tombstone of Pietro Cattani, who died on 10 March 1221. (St Francis was still alive at the time of his death). At the back, above the entrance, is the fresco "Crucifixion" by Perugino, painted around 1485. It was badly damaged during the construction of the basilica. The 15th century door is decorated with floral motifs. On top of the Porziuncola stands a small Gothic belfry.