When Cathars and Patarenes were spreading in western Europe, the Pisan scholar Hugh Eteriano, adviser to Manuel Comnenus on western church affairs, found a grou

Peter of Verona is a critical bridge between the founding generation of the Dominican Order and its achievements in the schools of the late 13th century. A dyna

In a searching challenge to the paradigm of medieval Christian dualism, this study reenvisions the Paulicians as largely conventional Christians engendered by c

The war on heresy obsessed medieval Europe in the centuries after the first millennium. R. I. Moore's vivid narrative focuses on the motives and anxieties of th