Columbia subject headings:
Charles IV, Holy Roman Emperor, 1316-1378--Exhibitions.
Constitutional history--Holy Roman Empire--Exhibitions.
Holy Roman Empire. Bulla Aurea--Exhibitions.
Harvard subject headings:
Charles IV, Holy Roman Emperor, 1316-1378--Pictorial works--Exhibitions.
Constitutional history--Holy Roman Empire--Sources--Exhibitions.
Holy Roman Empire. Bulla Aurea--Exhibitions.
Princeton subject headings: