dramatization-Henry-III-revolt-Simon-de-Montfort March 27, 2020 • Richard McFahn • You are here: Home » Barons, knights and empresses: Why was the monarchs’ authority challenged in the medieval period? » dramatization-Henry-III-revolt-Simon-de-Montfort About the author Richard McFahn Founder of History Resource Cupboard, Richard has worked for 20 years as a history teacher, subject and senior leader, Advanced Skills Teacher, local authority adviser and history ITE tutor.