Columbia subject headings:
Art patronage--Spain--Exhibitions.
Azara, José Nicolás de, marqués de Nibbiano, 1730 or 1731-1804--Portraits--Exhibitions.
Mengs, Anton Raphael, 1728-1779. José Nicolás de Azara--Exhibitions.
Museo del Prado--Exhibitions.
Harvard subject headings:
Azara, José Nicolás de, marqués de Nibbiano, 1730 or 1731-1804--Portraits--Exhibitions.
Mengs, Anton Raphael, 1728-1779. José Nicolás de Azara--Exhibitions.
Museo del Prado--Exhibitions.
Princeton subject headings: