Columbia subject headings:
Germany--Biography.
Germany--History--843-1273.
Nobility--Germany--Biography.
Nobility--Germany--History--To 1500.
Harvard subject headings:
Biographies.
Germany--Biography.
Germany--History--843-1273.
Nobility--Germany--Biography
Nobility--Germany--History--To 1500.
Princeton subject headings:
Germany--Biography.
Germany--History--843-1273.
Nobility--Germany--Biography.
Nobility--Germany--History--To 1500.