The Fortress of Ripafratta, Tuscany. A research project for its conservation and enhancement

The fortress of San Paolino in Ripafratta (San Giuliano Terme, Tuscany, Italy), represents the main structure of the ancient Pisan Republic defensive system towards Lucca. The fortress is the product of several stratifications dating back to the tenth century. It was built in the years between 1162-1164; later on, starting from 1504, significant interventions of modernization were realized by the Florentine Government, probably following a project by Giuliano da San Gallo.