Columbia subject headings:
Germany--History--Franconian House, 1024-1125.
Nobility--Germany--Biography.
Northeim (Germany)--History.
Otto, Duke of Northeim, active 1025-1083.
Harvard subject headings:
Germany--History--Franconian House, 1024-1125.
Nobility--Germany--Biography
Northeim (Germany)--History.
Otto, Duke of Northeim, active 1025-1083.
Princeton subject headings:
Germany--History--Franconian House, 1024-1125.
Nobility--Germany--Biography.
Northeim (Germany)--History.
Otto, Duke of Northeim, active 1025-1083.