The Albigensian movement began in Lyon in 1173, by a French merchant who preached on the duality of nature and was declared heretical in 1184.

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The Albigensian movement, also known as Catharism, did not specifically begin in Lyon in 1173 nor was it started by a French merchant. It was a Christian dualist or Gnostic revival movement that became prominent in the Languedoc region of France in the 12th century and was indeed declared heretical by the Catholic Church.

The Albigensian Movement Began in Lyon in 1173, by a French