Columbia subject headings:
Elite (Social sciences)--Italy--Volterra--History.
Nobility--Italy--Volterra--History.
Harvard subject headings:
Elite (Social sciences)--Italy--Volterra--History.
Nobility--Italy--Volterra--History.
Princeton subject headings:
Aristocracy (Social class)--Italy--Volterra--History.
Cities and towns--Italy--Volterra--History.
Nobility--Italy--Volterra--History.