XEE4181270 The assassination of Pierre de Castelnau, 14 January 1208. In charge of fighting the Albigeoise heresie (Cathare), Pierre de Castelnau was assassinated shortly after an appointment with Raymond VI, Count of Toulouse. by French School, (19th century); Private Collection; (add.info.: The Assassination of Pierre de Castelnau, January 14, 1208, Charged to fight the Albigeoise heresie (Cathare), Pierre de Castelnau was assassinated shortly after an appointment with Raymond VI, Count of Toulouse.); Stefano Bianchetti; French, out of copyright.