Columbia subject headings:
Harvard subject headings:
Marie Louise, Empress, consort of Napoleon I, Emperor of the French, 1791-1847.
Marie Louise, empress consort of Napoleon I, 1791-1847.
Napoleon I, Emperor of the French, 1769-1821
Princeton subject headings:
Marie Louise, empress consort of Napoleon I, 1791-1847.
Napoleon I, Emperor of the French, 1769-1821.