Columbia subject headings:
Harvard subject headings:
Canossa family--History.
Italy--History--Germanic rule, 962-1268.
Matilde, di Canossa, contessa, 1046-1115.
Tuscany (Italy)--History--To 1434.
Princeton subject headings:
Canossa family--History.
Matilde, di Canossa, contessa, 1046-1115.
Tuscany (Italy)--History.