Alfonso VII of León and Castile
Pedro fought in the army of Alfonso VII of León and Castile in the conquest of Aurelia and Alharilla in the present day area of Santa Cruz de la Zarza. Later in 1146, he participated in further military campaigns, assisting in the occupation of Baeza and the landings in Almería. These actions were an important part of the overall military campaign because they devastated the Moorish navy and largely removed them from the war at large.