Columbia subject headings:
Harvard subject headings:
Benedictines--Italy--History--18th century--Congresses.
Monasticism and religious orders--Italy--History--18th century--Congresses.
Monasticism and religious orders--Italy--History--19th century--Congresses.
Princeton subject headings:
Benedictines--Italy--History--18th century--Congresses.
Italy--Church history--18th century--Congresses.
Italy--Church history--19th century--Congresses.
Monasticism and religious orders--Italy--History--18th century--Congresses.
Monasticism and religious orders--Italy--History--19th century--Congresses.