Columbia subject headings:
Monastic and religious life--History--Middle Ages, 600-1500.
Monasticism and religious orders--History--Middle Ages, 600-1500.
Harvard subject headings:
Monastic and religious life--History--Middle Ages, 600-1500.
Monasticism and religious orders--History--Middle Ages, 600-1500.
Monasticism and religious orders--Rules--History--To 1500.
Princeton subject headings: