Columbia subject headings:
Harvard subject headings:
Diplomatics--Europe--History--Congresses.
Europe--History--15th century--Congresses.
Europe--History--16th century--Congresses.
Humanism--Europe--History--Congresses.
Prime ministers--Europe--History--Congresses.
Renaissance--Congresses
Princeton subject headings:
Europe--History--15th century--Congresses.
Europe--History--16th century--Congresses.
Humanism--Europe--History--Congresses.
Prime ministers--Europe--History--Congresses.
Renaissance--Congresses.