Columbia subject headings:
Alcázar (Madrid, Spain)--Exhibitions.
Art--Private collections--Spain--Madrid--Exhibitions.
Bourbon, House of--Art collections--Exhibitions.
Habsburg, House of--Art patronage--Exhibitions.
Harvard subject headings:
Alcázar (Madrid, Spain)--Exhibitions.
Art--Private collections--Spain--Madrid--Exhibitions.
Bourbon, House of--Art collections--Exhibitions.
Habsburg, House of--Art patronage--Exhibitions.
Princeton subject headings:
Alcázar (Madrid, Spain)--Art collections--History--Exhibitions.
Architecture--Spain--Madrid--Exhibitions.
Art museums--Spain--Madrid--Exhibitions.
Art patronage--Spain--Exhibitions.
Art--Collectors and collecting--Spain--Madrid--Exhibitions.
Madrid (Spain)--Buildings, structures, etc.
Palaces--Spain--Madrid--Exhibitions.