1.   The church is lofty, with three stages and, over the crossing, has a lantern with its octopartite rib vault.

2.   The transept and crossing have Angevin rib vaults in octopartite divisions.

3.   In Lombardy, however, the rib vault was experimented with and a number of examples were built.

4.   Decorative bosses are superimposed at the intersections of all rib vaults.