""The Martyrs of Castelfidardo"" is a historical novel written by Marquis de Segur. The story is set in the mid-19th century during the Italian War of Independence. The protagonist of the novel is a French soldier named Paul Armand de la Roche, who is sent to Italy to fight alongside the Papal States against the Italian nationalists. The story revolves around the Battle of Castelfidardo, where the Papal States are defeated by the Italian nationalists...