The Legitimation of Political Power in Medieval Thought: Acts of the XIX Annual Colloquium of the Societe Internationale Pour l'Etude de la Philosophie Medievale Alcala, 18-20 September 2013

What makes political power legitimate? Without legitimation, subjects will not accept power, and, since religion permeated medieval society, religion became foundational to philosophical legitimationsof political power. In 2013, the XIX Annual Colloquium of the International Society for the Study of Medieval Philosophy took place in Alcala de Henares, one of the medieval centers of political debate within and between Jewish, Christian and Muslim communities. The members of these communities all shared the common belief that God constitutes the remote or proximate cause of legitimation. Yet, beyond this common belief, they differed significantly in their points of departure and how their arguments evolved. For instance, the debate among Western Christians in the conflict between secular power and Papal authority sowed the seeds for a secular basis of legitimacy. The volume reflects the results of the colloquium. Many contributions focus on key Christian thinkers such as Marsilius of Padua, Thomas Aquinas, John Quidort of Paris, Giles of Rome, Dante, and William of Ockham; other studies focus on major authors from the Jewish and Muslim traditions, such as Maimonides and Alfarabi. Finally, several papers focus on lesser-known but no less important figures for the history of political thought: Manegold of Lautenbach, Ptolemy of Lucca, Guido Terrena, John of Viterbo, Pierre de Ceffons, John Wyclif and Pierre de Plaoul. The contributions rely on original texts, giving the readers a fresh insight into these issues.