Columbia subject headings:
Harvard subject headings:
Nobility--Poland--History.
Patron and client--Poland--History.
Poland--Court and courtiers--History.
Radziwiłł, Krzysztof, 1585-1640.
Princeton subject headings:
Patron and client--Poland--History--17th century.
Poland--History, Military--17th century.
Poland--Social life and customs--17th century.
Radziwiłł, Krzysztof, 1585-1640.