Columbia subject headings:
Harvard subject headings:
Italy--Church history--476-1400--Congresses.
Monasteries--Italy--Congresses.
Monasticism and religious orders--History--Middle Ages, 600-1500--Congresses.
Monasticism and religious orders--Italy--Congresses.
Princeton subject headings:
Benedictines--Italy--History--Congresses.
Cluniac architecture.
Monasticism and religious orders--Italy--History--Congresses.