- Feb 26 Battle of Benevento fought in Southern Italy between Manfred of Sicily and army of Charles of Anjou
- Jun 22 Pope Clement IV commissions English philosopher Roger Bacon to begin "writings and remedies for current conditions" ie. write a summary of the sciences (results in his 1267 "opus major")
- Jul 2 Treaty of Perth: Norway recognises Scottish sovereignty over the Hebrides and the Isle of Man