Catharism was a Christian quasi-dualist and pseudo-Gnostic movement in northern Italy and southern France between the 12th and 14th centuries.
St. Paul, by Valentin de Boulogne.
The Fall of the Rebel Angels by Hieronymus Bosch
Painting by Pedro Berruguete portraying the story of a disputation between Saint Dominic and the Cathars (Albigensians), in which the books of both were thrown on a fire and Dominic's books were miraculously preserved from the flames.
Cathars being expelled from Carcassonne in 1209.
The Medieval Inquisition was a series of inquisitions from around 1184, including the Episcopal Inquisition and later the Papal Inquisition. The Medieval Inquisition was established in response to mov
Catharism
…Denounced as a heretical sect by the Catholic Church, the alleged followers of Catharism were attacked first by the Albigensian Crusade and later by the Medieval Inquisition, which claimed to have eradicated them by 1350. Thousands of people were slaughtered, hanged, or burned at the stake. The extent of Catharism--and even…
Pope Gregory IX from medieval manuscript: Universitätsbibliothek Salzburg, M III 97, 122rb, ca. 1270)