Tuesday, September 1, 2026 · 天火 · tianmu.org
Cathar
Surviving texts from the Cathar tradition, the dualist Christian movement of medieval southern France.
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Texts
Book of the Two PrinciplesThe largest surviving work of Cathar theology — a systematic defence of absolute dualism suppressed for six hundred years until its first publication in 1939.GlossaryA shelf-specific glossary starter for the Cathar shelf.Inquisitorial SourcesRecords preserved by medieval Inquisitors documenting Cathar theology, rituals, and organisation — the voice of a suppressed tradition refracted through its destroyers.Interrogatio JohannisA sacred Cathar scripture preserving dualist cosmogony in the Johannine tradition, brought from Bulgaria to Italy around 1190.Introduction to the CatharsA source-critical introduction to the Cathars — the dualist Christians of medieval Languedoc, the crusade that destroyed them, the inquisition that hunted their survivors, and the modern scholarly war over whether they ever existed at all.