Columbia subject headings:
Harvard subject headings:
Collegio Alberoni--History.
Piacenza (Italy)--Intellectual life--18th century.
Piacenza (Italy)--Intellectual life--19th century.
Princeton subject headings:
Collegio Alberoni--History--Congresses.
Piacenza (Italy)--Intellectual life--18th century--Congresses.
Piacenza (Italy)--Intellectual life--19th century--Congresses.