Columbia subject headings:
Beatrice, di Toscana e di Lorena, 1015-1076.
Holy Roman Empire--History--843-1273.
Italy--History--Germanic rule, 962-1268.
Tuscany (Italy)--Kings and rulers--Biography.
Harvard subject headings:
Beatrice, di Toscana e di Lorena, 1015-1076.
Canossa (Italy)--History.
Italy--History--476-1268.
Princeton subject headings:
Beatrice, di Toscana e di Lorena, 1015-1076.
Canossa (Italy)--History.
Italy--History--476-1268.