Columbia subject headings:
Maximilian, Emperor of Mexico, 1832-1867.
Mexico--History--European intervention, 1861-1867.
Harvard subject headings:
Maximilian, Emperor of Mexico, 1832-1867
Mexico--History--European intervention, 1861-1867
Princeton subject headings:
Maximilian, Emperor of Mexico, 1832-1867.
Mexico--History--European intervention, 1861-1867.