From historical documents to GIS: A spatial database for medieval fiscal data in Southern Italy

The study presented in this article addresses a geographic information system supporting historical research, including tools for geo-referencing data extracted from medieval source documents. Working closely with historians, an effective model for fiscal and census data has been designed to supply them with tools for digitally archiving data from historical source documents in a database structure, which may suggest new criteria for studying and correlating information. The considered data had been collected from the Quaternus Declaracionum of the Regno di Napoli (Kingdom of Naples) and focuses on an area corresponding to the Principality of Taranto from 1458-1460