The Battle of Las Navas de Tolosa, known in Arab history as the Battle of Al-Uqab (Arabic: معركة العقاب), took place on 16 July 1212 and was an important turning point in the Reconquista and in the medieval history of Spain.[7] The Christian forces of King Alfonso VIII of Castile were joined by the armies of his rivals, Sancho VII of Navarre and Peter II of Aragon, in battle[8] against the Almohad Muslim rulers of the southern half of the Iberian Peninsula. The al-Nasir (Miramamolín in the Spanish chronicles) led the Almohad army, made up of people from all over the Almohad Caliphate.
