Columbia subject headings:
Harvard subject headings:
Europe--Civilization--16th century--Congresses.
Europe--Civilization--17th century--Congresses.
Europe--Court and courtiers--Congresses.
Renaissance--Congresses
Princeton subject headings:
Courts and courtiers--Europe--History--16th century--Congresses.
Courts and courtiers--Europe--History--17th century--Congresses.
Europe--Civilization--Congresses.
Europe--Social life and customs--Congresses.