The Albigensian Crusade was a blood-soaked military campaign, as the church desperately attempted to purge heresy across Christendom in the early 1200's.

Matt Lewis is joined by Mark Gregory Pegg to unravel the myths and chaos surrounding medieval heresy, including the controversial existence of the Cathars, the true motivations behind the crusades and how the relentless Inquisition transformed medieval Christendom forever.

Gone Medieval is presented by Matt Lewis. The audio editor is Amy Haddow and the producer is Joseph Knight. The senior producer is Anne-Marie Luff.

All music used is courtesy of Epidemic Sounds.

Gone Medieval is a History Hit podcast.

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