Authors from the twelfth to the sixteenth centuries defended recognizable principles of toleration. Some scholars have objected that ideas of tolerance originating during the European Middle Ages are irrelevant to modern theories of toleration. The present paper, building upon Michael Sandel’s concept of “judgmental toleration,” demonstrates the applicability of medieval tolerance in modern contexts. The essay initially surveys examples of the deployment of “judgmental toleration” during the Middle Ages in the writings of St. Thomas Aquinas, Nicole Oresme, St. Augustine, Christine (...) de Pizan, Francisco Suárez, and Bartolomé de Las Casas. Thereafter, the paper considers how “judgmental toleration” may prove useful in solving problems that arise in modern theories of tolerance, as reflected in the classical liberalism of John Stuart Mill and in deliberative democratic thought. Thus, medieval defenses of tolerance afford lessons from the past that are salient in the present. (shrink)