Columbia subject headings:
Harvard subject headings:
Castel Viscardo (Italy)--History.
Castel Viscardo (Orvieto, Italy)
Justice, Administration of--Italy--History--16th century.
Nobility--Italy--History--16th century.
Princeton subject headings:
Castel Viscardo (Orvieto, Italy)
Justice, Administration of--Italy--Orvieto--History.
Nobility--Italy--Orvieto--History.
Orvieto (Italy)--Social conditions.