Columbia subject headings:
Architecture, Romanesque--Spain, Northern--Congresses.
Art, Romanesque--Spain, Northern--Congresses.
Christian art and symbolism--Spain, Northern--Medieval, 500-1500--Congresses.
Harvard subject headings:
Art, Romanesque--Spain, Northern--Congresses.
Christian art and symbolism--Spain, Northern--Medieval, 500-1500--Congresses.
Princeton subject headings:
Art, Romanesque--Spain, Northern--Congresses.
Christian art and symbolism--Spain, Northern--Medieval, 500-1500--Congresses.