Professor Peter Biller
Medieval history; heresy, inquisition & 'religions': university texts as the locus for medieval thought about contemporary social topics such as medicine, peoples and population.
Professor André Vauchez
Western Medieval History; History of Christianity; Researches on the medieval conception of holiness and on the sacralization of space and time ; Francis of Assisi and the Franciscan history. Dissent and Orthodoxy in the West (X-XV centuries)