Columbia subject headings:
Harvard subject headings:
Escorial--Art collections--Catalogs.
Escorial--Art collections.
Painting, European--Catalogs.
Painting, European.
Painting--Spain--San Lorenzo del Escorial--Catalogs.
Painting--Spain--San Lorenzo del Escorial.
Palacio Real (Madrid, Spain)
Palacio Real (Madrid, Spain)--Catalogs.
Princeton subject headings:
Art, European--Exhibitions.
Art--Spain--Madrid--Exhibitions.
Escorial--Exhibitions.