Columbia subject headings:
Ferrero d'Ormea family--Congresses.
Nobility--Italy--Piedmont--History--Congresses.
Nobility--Political activity--Italy--Piedmont--Congresses.
Harvard subject headings:
Ferraro family--Congresses.
Nobility--Italy--Piedmont--History--Congresses.
Nobility--Italy--Piedmont--Political activity--Congresses.
Ormea, Carlo Vincenzo Ferrero, marchese d', 1680-1745--Congresses.
Princeton subject headings:
Ferrero d'Ormea--Congresses.
Nobility--Italy--Mondov♭̀--History--Congresses.
Nobility--Italy--Piedmont--History--Congresses.