Columbia subject headings:
Art, Spanish--Congresses.
Symbolism in art--Spain--Congresses.
Harvard subject headings:
Christian art and symbolism--Portugal--Congresses.
Christian art and symbolism--Spain--Congresses.
Princeton subject headings:
Art, Spanish--History.
Christian art and symbolism--Spain--History.
Dramatic music--Portugal--Coimbra--History and criticism.
Symbolism in art--Spain--Congresses.