Aragón was a key Western province for the Templars and the birthplace of several of Grand Masters. It was also a live crusading theatre in the so-called Reconquista, in which Christian kings battled against Islamic emirs known as Moors, who occupied southern Spain. From the 1130s onward, the Templars garrisoned numerous large fortresses, including Monzón and Miravet, and threw themselves into this struggle. As Templar influence grew, they served as diplomats and mediators between Aragon’s rulers and the Church, and as tutors to the royal family.