Columbia subject headings:
Art--Private collections--Spain--Exhibitions.
Patrimonio Nacional--Exhibitions.
Portraits, Spanish--Spain--Exhibitions.
Spain--Kings and rulers--Portraits--Exhibitions.
Harvard subject headings:
Art--Spain--Madrid--Exhibitions.
Patrimonio Nacional--Art collections--Exhibitions.
Portraits, Spanish--Exhibitions.
Spain--Kings and rulers--Portraits--Exhibitions.
Princeton subject headings:
Art--Private collection--Spain--Exhibitions.
Patrimonio Nacional--Exhibitions.
Portraits, Spanish--Spain--Exhibitions.
Portraits.
Spain--Kings and rulers--Portraits--Exhibitions.