Columbia subject headings:
Harvard subject headings:
Germany--History--Saxon House, 919-1024--Congresses.
Monarchy--Germany--History--To 1500--Congresses.
Saxony (Germany)--Antiquities--Congresses.
Saxony (Germany)--History--To 1423--Congresses.
Princeton subject headings:
Art, Ottonian--Congresses.
Germany--History--Saxon House, 919-1024--Congresses.
Holy Roman Empire--History--Saxon House, 919-1024--Congresses.
Holy Roman Empire--Kings and rulers--Congresses.
Illumination of books and manuscripts, Ottonian--Congresses.
Kings and rulers in art--Congresses.
Symbolism in politics--Holy Roman Empire--History--To 1500--Congresses.