The ceilings are decorated with frescoes of the 15th century .
Those of the choir are older than those of the nave : the fragment of the figure of Christ in the middle of the choir ceiling may even date from the 14th century .
The ceilings are decorated with frescoes of the 15th century , but those of the choir are older than those of the nave : the fragment of the figure of Christ in the middle of the choir ceiling may even date from the 14th century .