Columbia subject headings:
Courts and courtiers--Congresses.
Europe--Kings and rulers--Congresses.
Europe--Politics and government--Congresses.
Harvard subject headings:
Courts and courtiers--Historiography--Congresses.
Europe--Court and courtiers--Historiography--Congresses.
History, Modern--Historiography--Congresses.
Princeton subject headings:
Courts and courtiers--Historiography--Congresses.
Europe--Court and courtiers--Historiography--Congresses.
History, Modern--Historiography--Congresses.