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