Columbia subject headings:
Church history--Middle Ages, 600-1500--Congresses.
Civilization, Medieval--Congresses.
Monasticism and religious orders--History--Middle Ages, 600-1500--Congresses.
Harvard subject headings:
Church history--Middle Ages, 600-1500--Congresses.
Civilization, Medieval--Congresses
Monasticism and religious orders--History--Middle Ages, 600-1500--Congresses.
Princeton subject headings:
Monastic and religious life--Congresses.
Monasticism and religious orders--History--Middle Ages, 600-1500--Congresses.