Columbia subject headings:
Elite (Social sciences)--Poland--Wielkopolska--History.
Poland--Politics and government--1572-1763.
Sigismund III, King of Poland and Sweden, 1566-1632.
Harvard subject headings:
Elite (Social sciences)--Poland--Wielkopolska--History.
Poland--Politics and government--1572-1763
Sigismund III, King of Poland and Sweden, 1566-1632.
Princeton subject headings: