Columbia subject headings:
Harvard subject headings:
France--History--Medieval period, 987-1515.
Middle Ages.
Saint-Pierre le-Vif (Benedictine abbey : Sens, France)
Saint-Pierre-le-Vif (Monastery : Sens-sur-Yonne, France)
Sens-sur-Yonne (France)--History--Medieval period, 987-1515.
Sens-sur-Yonne (France)--History.
Princeton subject headings:
Church history--Middle Ages, 600-1500.
Saint-Pierre-le-Vif (Benedictine abbey : Sens, France)
Sens-sur-Yonne (France)--History--Sources.