Columbia subject headings:
Poland--History--Sigismund II Augustus, 1548-1572.
Poland--Kings and rulers--Biography.
Sigismund II Augustus, King of Poland, 1520-1572.
Harvard subject headings:
Poland--History--Sigismund II Augustus, 1548-1572
Poland--Kings and rulers--Biography
Sigismund II Augustus, King of Poland, 1520-1572
Princeton subject headings:
Poland--History--Sigismund II Augustus, 1548-1572.
Poland--Kings and rulers--Biography.
Sigismund II Augustus, King of Poland, 1520-1572.