Les Diables Noirs

Play, in French, first published in 1863. According to Wikipedia: "Victorien Sardou (7 September 1831 – 8 November 1908) was a French dramatist. He is best remembered today for his development, along with Eugène Scribe, of the well-made play. He also wrote several plays that were made into popular 19th-century operas such as La Tosca (1887) on which Giacomo Puccini's opera Tosca (1900) is based, and Fedora by Umberto Giordano, a work that popularized the fedora hat as well."