This volume collects twelve chapters that present the multifaceted responses to the works of the William of Ockham in Oxford, Paris, Italy, and at the papal court in Avignon in the 14th century, and it assembles contributions on philosophers and theologians who all have criticized Ockham's works at different points. In individual case studies it gives an exemplary overview over the reactions the Venerable Inceptor has provoked and also serves to better understand Ockham's thought in its historical context. The topics range from ontology, psychology, theory of cognition, epistemology, and natural science to ethics and political philosophy. This volume demonstrates that the reactions to Ockham's philosophy and theology were manifold, but one particular kind of reception is missing: unanimous approval. Contributors include Fabrizio Amerini, Stephen F. Brown, Nathaniel Bulthuis, Stefano Caroti, Laurent Cesalli, Alessandro D. Conti, Thomas Dewender, Isabel Iribarren, Isabelle Mandrella, Aurélien Robert, Christian Rode, and Sonja Schierbaum