A History of the Inquisition of the Middle Ages; volume III

"A History of the Inquisition of the Middle Ages; Volume III" by Henry Charles Lea is a detailed historical exploration of the Inquisition's role during the Middle Ages. It spotlights how the Inquisition worked in specialized areas, diving into different religious groups and movements, their beliefs, arguments, and how the Church responded to them. The book starts by looking at the Spiritual Franciscans, revealing disagreements inside the Franciscan Order. It shows the conflict between St. Francis's idea of being completely poor and the fact that the Order was getting richer. People like Elias and John of Parma are discussed, along with the difficult political fights that came up when trying to understand Franciscan rules. This sets the scene for a bigger look at heresy, what people believed, and persecution, while exploring disagreement between what the Church did and the core beliefs.