Columbia subject headings:
Mieszko II, King of Poland, 990-1034.
Poland--History--Mieszko II, 1025-1034.
Poland--Kings and rulers--Biography.
Harvard subject headings:
Mieszko II, King of Poland, 990-1034.
Poland--History--Mieszko II, 1025-1034
Princeton subject headings:
Mieszko II, King of Poland, 990-1034.
Poland--History.