Columbia subject headings:
Austria--History--Congresses.
Austria--Relations--France--Lorraine--Congresses.
Habsburg, House of--Congresses.
Lorraine (France)--History--Congresses.
Lorraine (France)--Relations--Austria--Congresses.
Lorraine, House of--Congresses.
Harvard subject headings:
Princeton subject headings:
Habsburg, House of.
Lorraine (France)--History.
Lorraine (France)--Politics and government.