Published in Languages and Cultures in Tradition

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This study analyzes the juridical-theological architecture of papal power in Johannes Quidort (c. 1270-1306), particularly in his work De Regia Potestate et Papali. Set within the conflict between Boniface VIII and Philip the Fair, Quidort defends the distinction between temporal and spiritual powers, maintaining that both derive from the same principle but operate within autonomous spheres. His reflection, grounded in Thomas Aquinas, Aristotle, and the Corpus iuris civilis, seeks to limit papal authority over kingdoms, reaffirming royal sovereignty as a legitimate and juridical power oriented toward the common good. By appealing to the ius gentium, he proposes restraints on the arbitrariness of both prince and Church, anticipating modern debates on sovereignty and international law. His work stands as a landmark in understanding the medieval hierocratic model, rooted in local and juridical traditions.