The Battle of Ourique (Arabic: معركة أوريكه) took place on 25 July 1139, in which the forces of Portuguese count Afonso Henriques (of the House of Burgundy) defeated those led by the Almoravid governor of Córdoba, Muhammad Az-Zubayr Ibn Umar, identified as "King Ismar" in Christian chronicles.
Portuguese participation in the Reconquista occurred from when the County of Portugal was founded in 868 and continued for 381 years until the last cities still in Muslim control in the Algarve were captured in 1249. Portugal was created during this prolonged process and largely owes its geographic form to it.
The Portuguese Reconquista involved the participation of north European crusaders passing through Portuguese coasts en route to the Holy Land, such as Englishmen, French, Flemings, Normans and Germans, most notably at the conquest of Lisbon in 1147, but also in 1142, 1154, 1189, 1191 and 1217. Many settled in Portugal at the invitation of king Afonso I or his son and successor Sancho I.
The Portuguese House of Burgundy (Portuguese: Casa de Borgonha) was a Portuguese noble house that ruled the County and later Kingdom of Portugal from its founding until the 1383–85 Portuguese Interregnum.
The house was founded by Henry of Burgundy, who became Count of Portugal in 1096. His son, Afonso Henriques, was proclaimed King of Portugal following his victory at the Battle of Ourique in 1139, establishing the Afonsine dynasty (Dinastia Afonsina). Burgundian monarchs would rule Portugal through much of its early formation, including the formalization of the Portuguese language under King Dinis I, the first Portuguese parliament, under King Afonso II, and the conquest of the Kingdom of the Algarve, under King Afonso III. Numerous princes of the house took up thrones across Europe, such as Ferdinand I, Count of Flanders and Peter I, Count of Urgell. Similarly, many princesses became royal consorts, including Berengaria, Queen of Denmark, Leonor, Queen of Aragon, and Teresa, Duchess of Burgundy, among others.