Columbia subject headings:
Harvard subject headings:
Bavaria (Germany)--History--Ludwig IV, 1294-1347--Congresses.
Germany--History--Ludwig IV, 1314-1347--Congresses.
Holy Roman Empire--History--Ludwig IV, 1314-1347--Congresses.
Holy Roman Empire--Kings and rulers--Congresses.
Ludwig IV, Holy Roman Emperor, 1282?-1347--Congresses.
Princeton subject headings:
Bavaria (Germany)--History--Ludwig IV, 1294-1347--Congresses.
Germany--History--Ludwig IV, 1314-1347--Congresses.
Holy Roman Empire--History--Ludwig IV, 1314-1347--Congresses.
Holy Roman Empire--Kings and rulers--Congresses.
Ludwig IV, Holy Roman Emperor, 1282?-1347--Congresses.