Columbia subject headings:
Art--Italy--Rome.
Associations, institutions, etc., Foreign--Italy--Rome.
Christian art and symbolism--Italy--Rome.
Rome (Italy)--History.
Harvard subject headings:
Catholic Church--Foreign relations--France--Congresses.
Catholic Church--Italy--Rome--Congresses.
France--Foreign relations--Catholic Church--Congresses.
Rome (Italy)--Church history--Congresses.
Princeton subject headings:
Art, French--Italy--Rome--Congresses.
Christian art and symbolism--Italy--Rome--Congresses.
Rome (Italy)--Intellectual life--Congresses.