La serie diacronica delle fonti notarili medievali e il mosaico catastale per il processo formativo di San Vito Romano. The diachronic series of medieval notarial sources and the modern cadastral mosaic for the formative process of urban fabric at San Vito Romano

The diachronic series of documents that can provide guidance on the ownership of single lots within an urban center, in its various stages of development, is a prerequisite for the further testing of an established method of analysis proposed here to reconstruct the growth phases of a small town such as San Vito Romano. Overlapping data from the analysis of predial toponyms, the examination of imperial diplomas, the quantitative analysis of notarial medieval sources, the series of maps and views, the Gregorian and Rustic cadasters, the series of current cadastral plans reassembled in the mosaic of ground plans, it is possible to outline the history of a settlement, in cases where the documentation is not sufficient to provide an exhaustive picture. The material consistence of the urban settlement, considered here as an unique and unrepeatable historical document, in cases where the archeological excavation is not feasible, can be reconstructed through the collation of cadastral plans in order to draw an urban tomography and provide guidance on the knowledge of building types, urban fabric and on the hierarchy of paths: considering therefore the city as an organic whole and overlapping data on monumental buildings, such as forts, castles, churches and palaces, with those on the urban and rural residential fabric. The case of San Vito Romano, yet not studied in deep within specialized literature, shows a stratification of early interventions, separated and then aggregated anew by synecism, a medieval settlement such as the Colonna Castle, lately extended by residential fabric as in other cases in the area, with the urban Baroque addition built by Mario Theodoli (1649). San Vito Romano thus represents a meaningful case of study to apply a method: reconstructing the history of a small historical centre for the definition of a preservation plan.