Columbia subject headings:
Harvard subject headings:
Europe--History--476-1492.
Group identity--Germany
Livonia--History.
Prussia, East (Poland and Russia)--History.
Teutonic Knights
War and civilization--Europe--To 1500.
Princeton subject headings:
Europe--History--476-1492.
Group identity--Germany.
Livonia--History.
Prussia, East (Poland and Russia)--History.
Teutonic Knights.
War and civilization--Europe--To 1500.