Columbia subject headings:
Harvard subject headings:
Germany--History--Saxon House, 919-1024.
Holy Roman Empire--History--843-1273.
Holy Roman Empire--Kings and rulers--Biography.
Otto III, Holy Roman Emperor, 980-1002.
Princeton subject headings:
Germany--History--Saxon House, 919-1024.
Holy Roman Empire--History--843-1273.
Holy Roman Empire--Kings and rulers--Biography.
Otto III, Holy Roman Emperor, 980-1002.