Columbia subject headings:
Harvard subject headings:
Diplomats--Poland--Pomerelia--History--To 1500.
Diplomats--Pomerania (Poland and Germany)--History--To 1500.
Diplomats--Silesia--History--To 1500.
Political culture--Europe, Central--History--To 1500.
Pomerania (Poland and Germany)--Politics and government.
Pomerelia (Poland)--Politics and government.
Silesia--Politics and government.
Symbolism in politics--Europe, Central--History--To 1500.
Princeton subject headings:
Communication--Europe, Central--History--To 1500.
Communication--Europe, Eastern--History--To 1500.
Diplomatics--Europe, Central--History--To 1500.
Diplomatics--Europe, Eastern--History--To 1500.
Europe, Central--History--To 1500.
Europe, Eastern--History--To 1500.