Columbia subject headings:
Bohemia (Czech Republic)--Social conditions--16th century--Congresses.
Bohemia (Czech Republic)--Social conditions--17th century--Congresses.
Bohemia (Czech Republic)--Social conditions--To 1500--Congresses.
Elite (Social sciences)--Czech Republic--Bohemia--History--Congresses.
Elite (Social sciences)--Poland--History--Congresses.
Poland--Social conditions--16th century--Congresses.
Poland--Social conditions--17th century--Congresses.
Poland--Social conditions--To 1500--Congresses.
Harvard subject headings:
Bohemia (Czech Republic)--Social conditions--16th century--Congresses.
Bohemia (Czech Republic)--Social conditions--17th century--Congresses.
Bohemia (Czech Republic)--Social conditions--To 1500--Congresses.
Elite (Social sciences)--Czech Republic--History.
Elite (Social sciences)--Poland--History.
Poland--Social conditions--16th century--Congresses.
Poland--Social conditions--17th century--Congresses.
Poland--Social conditions--To 1500--Congresses.
Princeton subject headings: