Atlante dei siti fortificati della provincia di Viterbo, Italia (X-XV secolo). Fonti e metodi per la ricostruzione della rete insediativa bassomedievale

This study addressed the historical phenomenon known as incastellamento, in the area of the current province of Viterbo, from a quantitative and geographical perspective. The time period considered was the 10th-15th century. The paper describes the documentary sources, historical maps, aerial images, past studies and archaeological sources that are available to researchers, and which have been used, in good measure, to reconstruct the fortified settlement network.