Columbia subject headings:
Austria--Court and courtiers--Congresses.
Austria--Intellectual life--Congresses.
Austria--Relations--Italy--Congresses.
Habsburg, House of--Congresses.
Italy--Court and courtiers--Congresses.
Italy--Intellectual life--Congresses.
Italy--Relations--Austria--Congresses.
Harvard subject headings:
Austria--Court and courtiers--Congresses.
Austria--Intellectual life--Congresses.
Austria--Relations--Italy--Congresses.
Habsburg, House of--Congresses.
Italy--Court and courtiers--Congresses.
Italy--Intellectual life--Congresses.
Italy--Relations--Austria--Congresses.
Princeton subject headings:
Austria--Court and courtiers--Congresses.
Austria--Intellectual life--Congresses.
Austria--Relations--Italy--Congresses.
Habsburg, House of--Congresses.
Italy--Court and courtiers--Congresses.
Italy--Intellectual life--Congresses.
Italy--Relations--Austria--Congresses.