| This Year In|
- 1208-1244: Albigensian Crusade against the Cathars in France begins when one of the knights of the Count of Toulouse murders one of the Pope's legates.
- King John of England is excommunicated after a dispute with the pope over the office of the archbishopric of Canterbury. England falls under papal jurisdiction.
- Béziers is besieged by the Albigensian Crusaders. Arnaud Amaury, in secret a member of the Inquisition, speaks the famous words "Caedite eos. Novit enim Dominus qui sunt eius." ( Massacre them. The Lord will know his own.) The city is razed and around 20,000 people are killed.