Throughout the centuries, a large part of Val Tidone belonged to Saint Colombano and his Abbey. Historic documents do not cover this completely but the numerous churches dedicated to the Saint are evident testimony.
In the VIII century, Saint Colombano’s remains were brought to Pavia. Thus the itinerary Bobbio-Pavia of which there are various testimonies. There is a francigena mountain route from Milan to Pavia to Bobbio, which then follows the abbots way to Pontremoli (Tuscany) and then to Rome