Columbia subject headings:
Nobility--Italy--Rome (Province)--History.
Papacy--History.
Rome (Italy : Province)--Social life and customs.
Sacchetti family.
Sacchetti, Giulio, 1926---Family.
Vatican City--Social life and customs.
Harvard subject headings:
Papacy--History
Sacchetti, Giulio.
Sacco family.
Vatican City--Social life and customs.
Princeton subject headings: