Columbia subject headings:
Italy--Church history--19th century.
Napoleon I, Emperor of the French, 1769-1821.
Persecution--Italy--History--19th century.
Harvard subject headings:
Italy--Church history--19th century.
Napoleon I, Emperor of the French, 1769-1821
Persecution--Italy--History--19th century.
Princeton subject headings:
Passionists.
Persecution--Italy.