Anon. I Papi Ed I Vespri Siciliani: con documenti inediti o rari. Roma: Tip. Istituto Pio IX - Artigianelli di S. Giuseppe, 1882. Terza edizione con nuove aggiunte. 
Floral print paper over boards, red leather spine label, 5 1/2 x 8 1/2 inches; xxi., 153, (2) clean pp., tight. Very good. Hardcover.
Sicilian Vespers - "(AD 1282) massacre of the French with which the Sicilians began their revolt against Charles I, Angevin king of Naples and Sicily; it precipitated a French-Aragonese struggle for possession of that kingdom. Its name derives from a riot that took place in a church outside Palermo at the hour of vespers on Easter Monday, March 30, 1282. Peter III of Aragon, Charles’s rival for the Neapolitan throne, conspired to raise a rebellion against him in Sicily. The rising broke out prematurely when Sicilians, incensed by Charles’s oppressive regime, killed some insulting French soldiers at vespers in the church of Santo Spirito. The people of Palermo followed suit and massacred 2,000 French inhabitants of the city the night of March 30–31. All of Sicily soon revolted and sought help from the Aragonese, who landed at Trapani on August 30.
"The War of the Sicilian Vespers ensued. The Angevins were supported by the papacy, the Italian Guelfs, and Philip III of France, while the Aragonese were helped by the Italian Ghibellines. The son of Peter III acceded to the throne of Aragon as James II and made peace with the papacy, France, and the Angevins (to whom he renounced Sicily), by the Treaty of Anagni (June 1295). But the Sicilians took as their king James’s brother, Frederick III, who finally secured the kingdom for himself by the Peace of Caltabellotta (August 31, 1302), beginning a long period of Spanish hegemony on the island." - Encyclopedia Britannica online.