The Cathars (2nd ed.)

In the second half of the twelfth century, the Catholic Church became convinced that dualist heresy was taking root within Christian society and that it was particularly strong in southern France. The nature and extent of this heresy and the reaction of the Church to the perceived threat have been the focus of extensive research since the mid-nineteenth century, research which has become especially intense in the last decade. Malcolm Barber's second edition of The Cathars (which first appeared i