Columbia subject headings:
Constitutional history--Germany.
Germany--History--To 1917.
Germany--Kings and rulers.
Harvard subject headings:
Constitutional history, Medieval.
Constitutional history--Holy Roman Empire
Germany--History--To 1517.
Germany--Kings and rulers.
Holy Roman Empire--Kings and rulers--Deposition.
Holy Roman Empire--Kings and rulers--Election.
Princeton subject headings:
Constitutional history, Medieval--Germany.
Constitutional history--Holy Roman Empire.
Germany--History--To 1517.
Germany--Kings and rulers.
Holy Roman Empire--Kings and rulers--Election.