Columbia subject headings:
Nobility--Italy--Rome--Genealogy.
Nobility--Italy--Rome.
Rome (Italy)--History--476-1420.
Harvard subject headings:
Nobility--Italy--Papal States--Biography.
Nobility--Italy--Rome--Biography.
Papal States--History--962-1309.
Rome (Italy)--History--476-1420.
Princeton subject headings:
Civilization, Medieval.
Nobility--Italy--Papal States--Biography.
Nobility--Italy--Rome--Biography.
Papal States--History--962-1309.
Rome (Italy)--History--476-1420.