Columbia subject headings:
Harvard subject headings:
Castile (Spain)--Church history.
Church history--12th century.
Church history--13th century
Cluniacs--Spain--History.
Cluniacs--Spain.
Leon (Kingdom)--Church history.
Monasticism and religious orders--Spain--History--Middle Ages, 600-1500.
Spain--Church history.
Princeton subject headings:
Cluniacs--Spain--History.
Monasticism and religious orders--Spain--History--Middle Ages, 600-1500.
Spain--Church history.