Columbia subject headings:
Harvard subject headings:
Poland--Foreign relations--Pomerania (Poland and Germany)
Poland--History--Jagellons, 1386-1572
Pomerania (Poland and Germany)--Foreign relations--Poland.
Princeton subject headings:
Poland--Foreign relations--Pomerania.
Poland--History--Jagellons, 1386-1572.
Pomerania (Poland and Germany)--Foreign Relations--Poland.