The de Chiavano family between the Kingdom of Sicily and the Duchy of Spoleto (13th-14th centuries)
Andrea Casalboni Throughout the 13th and 14th centuries, the border region between the Kingdom of Sicily and the papal territories underwent profound changes in the political, economic, and social landscape. The border itself, initially quite unstable in the inner mountainous areas, progressively settled due to the growing attention devoted by the Angevin kings and to…