[1][2] Among the relics preserved, the body of Saint Vitus should also be mentioned, which in 1355 the Emperor Charles IV had it transported to the cathedral of Prague.

At the end of the 11th century the monastery passed to the dependence of the French congregation of the Chaise-Dieu of Clermont-Ferrand.

The institution obtained many privileges and assets from the Carolingian and Ottonian kings and then from the Emperor Frederick I, who granted the monastery a diploma in 1155 with which numerous possessions were confirmed to the monastery, mainly located in the territories of Lecco, Bergamo and Ottobiano.

[5] Precisely in these years the building was remodeled in Romanesque forms and was equipped with a bell tower,[6] while preserving most of the perimeter walls of the early medieval church, as well as part of the facade (in which you can still see the blind arches and some openings) and the apse.

The monastery, which in the eighteenth century controlled numerous agricultural estates, especially around the city and in the Pavia area, was suppressed in 1799.