Columbia subject headings:
Art patronage--Spain--History--18th century--Congresses.
Art patronage--Spain--History--19th century--Congresses.
Charles IV, King of Spain, 1748-1819--Art collections--Congresses.
Charles IV, King of Spain, 1748-1819--Art patronage--Congresses.
Harvard subject headings:
Art--Collectors and collecting--Spain--Congresses.
Charles IV, King of Spain, 1748-1819--Art collections--Congresses.
Charles IV, King of Spain, 1748-1819--Art patronage--Congresses.
Princeton subject headings:
Art--Collectors and collecting--Spain--Congresses.
Charles IV, King of Spain, 1748-1819--Art collections--Congresses.
Charles IV, King of Spain, 1748-1819--Art patronage--Congresses.