Columbia subject headings:
History in art--Congresses.
History, Modern--Congresses.
Narrative art--History--Congresses.
Harvard subject headings:
Art--Political aspects--Europe--History--17th century--Congresses.
Art--Political aspects--Spain--History--17th century--Congresses.
History in art--Congresses.
Monarchy in art--Congresses.
Spain--Kings and rulers--Portraits--Congresses.
Princeton subject headings:
Art--Political aspects--Europe--History--17th century--Congresses.
Art--Political aspects--Spain--History--17th century--Congresses.
History in art--Congresses.
Monarchy in art--Congresses.
Spain--Kings and rulers--Portraits--Congresses.