Archbishop Wulfstan of York (d. 1023) is among the most important legal and political thinkers of the early Middle Ages. A leading ecclesiastic, innovative legislator, and influential royal councilor, Wulfstan witnessed firsthand the violence and social unrest that culminated in the fall of the English monarchy before the invading armies of Cnut in 1016. In his homilies and legal tracts, Wulfstan offered a searing indictment of the moral failings...