The Catalan Company or the Great Catalan Company (Catalan: Gran Companyia Catalana, Latin: Exercitus francorum, Societatis exercitus catalanorum, Societatis cathalanorum, Magna Societas Catalanorum) was a company of mercenaries led by Roger de Flor in the early 14th century and hired by the Byzantine Emperor Andronikos II Palaiologos to combat the increasing power of the Turks. It was formed by almogavar veterans of the War of the Sicilian Vespers, who had remained unemployed after the signing in 1302 of the Peace of Caltabellotta between the Crown of Aragon and the French dynasty of the Angevins.