Exterior view

Three portals, delimited by pillars with a rectangular base, are surmounted by lintels carved in bas-relief. The central lintel is the work of Biduino and bears his signature and date (1180) in the inscription. It depicts the Resurrection of Lazarus and the Entry of Christ into Jerusalem. The relief on the left depicts a hunting scene with two men intent on blowing their horn (symbol of civilization) in the midst of real and fantastic animals (symbol of the devil). The relief on the right shows two griffins (cross between lion and eagle) or hippogriffs (cross between griffin and horse) representing Christ taming a bear, a symbol of evil.