Medieval Christians imagined heretic-Muslim-traitor alliances spanning all of Europe

Evidence

Indeed, Christian chroniclers beyond the Iberian peninsula perceived the armies of Almohad caliph al-Nasir as a menace to all Europe; for Cesarius of Heisterbach and for the anonymous author of the Annals of Cologne, the Cathar heretics called on the caliph to aid them against the forces of the Albigensian Crusade; for Matthew Paris, King John of England promised to convert to Islam in return for the caliph’s aid against the French. Writers of the twelfth century had painted Muhammad as a heresiarch, and in the thirteenth some imagine heretics, Muslims, and traitors teaming up into an anti-Christian alliance. — John V. Tolan, Saracens, 947

Categorization

Category: Factual Claims

  • SEED: Article angle: how rumor and conspiracy theories operated in medieval Europe — false claims of King John converting to Islam and Cathars allying with the Almohads parallel modern moral-panic narratives of colluding enemies.