The Battle of Ourique took place on 25 July 1139, in which the forces of Portuguese count Afonso Henriques defeated those led by the Almoravid governor of Córdoba, Muhammad Az-Zubayr Ibn Umar, identified as "King Ismar" in Christian chronicles.

Afonso I, also called Afonso Henriques, nicknamed the Conqueror and the Founder by the Portuguese, was the first king of Portugal. He achieved the independence of the County of Portugal, establishing a new kingdom and doubling its area with the Reconquista, an objective that he pursued until his death.