Columbia subject headings:
Harvard subject headings:
Electors (Kurfürsten)--Biography--Congresses.
Friedrich I, Elector Palatine, 1425-1476--Congresses.
Palatinate (Germany)--History--Congresses.
Palatinate (Germany)--Politics and government--Congresses.
Princeton subject headings:
Electors (Kurfürsten)--Biography--Congresses.
Friedrich I, Elector Palatine, 1425-1476--Congresses.
Palatinate (Germany)--History--Congresses.
Palatinate (Germany)--Politics and government--Congresses.