Columbia subject headings:
Christian life--History--Middle Ages, 600-1500.
Church history--Middle Ages, 600-1500.
Harvard subject headings:
Christian art and symbolism--Medieval, 500-1500--Congresses
Christian life--History--Middle Ages, 600-1500.
Church history--Middle Ages, 600-1500
Piety in art--Congresses.
Princeton subject headings:
Christian art and symbolism--Medieval, 500-1500--Congresses.
Piety in art--Congresses.