The Middle Ages are often thought of as an era during which cruelty was a major aspect of life, a view that stems from the anti-Catholic polemics of the Reformation. Daniel Baraz makes the striking discovery that the concept of cruelty, which had been an important issue in late antiquity, received little attention in the medieval period before the thirteenth century. From that point on, interest in cruelty increased until it reached a peak late in the sixteenth century.Medieval Cruelty's extraordinary scope ranges from the writings of Seneca to those of Montaigne and draws from sources that...