Columbia subject headings:
Harvard subject headings:
France--Court and courtiers--Congresses.
France--Kings and rulers--Congresses.
France--Politics and government--19th century--Congresses.
Germany--Court and courtiers--Congresses.
Germany--Kings and rulers--Congresses.
Germany--Politics and government--1789-1900--Congresses
Princeton subject headings:
France--Court and courtiers--Congresses.
France--Intellectual life--19th century--Congresses.
Germany--Court and courtiers--Congresses.
Germany--Intellectual life--19th century--Congresses.