During the change of the castle in Palazzo, Bartolomeo Avanzini, architect, He puts hands to further work that involved a large part of the Sassuolo area: the realization of Via Rocca, the broad avenue and the square located in front of the palace. This avenue finally united the road between the sanctuary of Fiorano and the Palazzo Ducale, thus creating a strategic union of power. The feature that combines square and avenue is the symmetry created by the buildings from the street lead into the square, cardinal point of the project: north the Church of San Francesco, south roads of the Park, east and west the Sanctuary Palazzo Ducale.