Guillaume Bélibaste (occitan: Guilhèm Belibasta) is said to have been the last Cathar parfait in Languedoc. He was burned at the stake in 1321, as a result of the Inquisition at Pamiers led by Jacques Fournier (afterwards Pope Benedict XII). Much of Bélibaste's biography can be found in the pages of Emmanuel Le Roy Ladurie's Montaillou; although Bélibaste never lived at Montaillou, he is frequently mentioned in the interrogations of suspected heretics from Montaillou.