In contemporary Western societies, who are going through a neo-romantic stage, the Crusades have led to an immense literature and a remarkable popularity. In the scientific field, this phenomenon has encouraged the debate on the ideological and cultural issues surrounding Crusade. Since that in the Iberian Peninsula had developed fights between Muslims and Christians before 1096, it is inevitable that historians have wondered about the influence of the reconquest in the origins of the crusading movement. In this paper, we critized the widespread view among Anglo-Saxon historians, according to which secular piety and spirituality were instrumental in the development of the First Crusade, and struggles carried out in the Iberian Peninsula did not influence in the extraordinary adhesion of the European nobles to this issue. In addition, other concepts that may help to explain the intensity of the response, such as “aristocratic networks,” and at the same time help to understand the weight of the Hispanic experience in this movement.