Columbia subject headings:
Eugénie, Empress, consort of Napoleon III, Emperor of the French, 1826-1920.
Harvard subject headings:
Eugénie, Empress, consort of Napoleon III, Emperor of the French, 1826-1920.
Napoleon III, Emperor of the French, 1808-1873--Marriage.
Princeton subject headings:
Eugénie, Empress, consort of Napoleon III, Emperor of the French, 1826-1920.