Columbia subject headings:
Charles IV, King of Spain, 1748-1819--Drama.
Dramatic music--Spain--History--20th century.
María Luisa, Queen, consort of Charles IV, King of Spain, 1751-1819--Drama.
Harvard subject headings:
Charles IV, King of Spain, 1748-1819--Drama.
Dramatic music--Spain--History--20th century.
María Luisa, Queen, consort of Charles IV, King of Spain, 1751-1819--Drama.
Princeton subject headings:
Charles IV, King of Spain, 1748-1819--Drama.
Dramatic music--Spain--History--20th century.
María Luisa, Queen, consort of Charles IV, King of Spain, 1751-1819--Drama.