Columbia subject headings:
Harvard subject headings:
Ambassadors--Italy--Biography.
Balbo, Prospero, conte, 1762-1837.
Italy--Politics and government--18th century.
Statesmen--Italy--Biography.
Princeton subject headings:
Balbo, Prospero, conte, 1762-1837.
Italy--History--19th century.
Piedmont (Italy)--Biography.
Piedmont (Italy)--History--19th century.