Columbia subject headings:
Spain--History--Charles IV, 1788-1808.
Spain--History--Ferdinand VII, 1813-1833.
Spain--History--Napoleonic Conquest, 1808-1813.
Harvard subject headings:
Spain--History--Charles IV, 1788-1808
Spain--History--Ferdinand VII, 1813-1833
Spain--History--Napoleonic Conquest, 1808-1813
Princeton subject headings: