Beatrice of Béziers was the second wife of Raymond VI of Toulouse. Together they had one daughter, Constance of Toulouse. Beatrice was repudiated in 1189 and she retired to a Cathar nunnery. It was said she became a Cathar parfaite.
Book: William of Puylaurens . The Chronicle of William of Puylaurens: The Albigensian Crusade and Its Aftermath . W.A. . Sibley . M.D. . Sibley . The Boydell Press . 2003 .