Columbia subject headings:
Elite (Social sciences)--Italy--History--To 1500.
Italy--History--1268-1492.
Italy--History--Germanic rule, 962-1268.
Nobility--Italy--History--To 1500.
Harvard subject headings:
Elite (Social sciences)--Italy--History--To 1500.
Italy--History--1268-1492.
Italy--History--Germanic rule, 962-1268.
Nobility--Italy--History--To 1500.
Princeton subject headings:
Aristocracy (Social class)--Italy--History.
Cities and towns--Italy--History.
Social history--Medieval, 500-1500.