Columbia subject headings:
Montmartre (Paris, France)--History.
Harvard subject headings:
Montmartre (Paris, France)--History--19th century.
Montmartre (Paris, France)--History.
Political violence--France--Paris--History--19th century.
Princeton subject headings:
Montmartre (Paris, France)--History--19th century.
Political violence--France--Paris--History--19th century.