The Aragonese Crusade (1284–1285), also known as the Crusade of Aragon or Crusade against Catalonia, was a military venture waged by the Kingdom of France against the Crown of Aragon. Fought as an extension of the War of the Sicilian Vespers (1282–1302), the crusade was called by Pope Martin IV in retribution for Peter III of Aragon's intervention in Sicily, which had damaged the political ambitions of the papacy and France.