 The incipit is "Incipit chronica a magistro Guillelmo de Podio Laurenti compilata, "here begins the chronicle compiled by Master William of Puylaurens".The prologue is headed "Incipit prologus super hystoria negocii a Francis Albiensis vulgariter appellati, "here begins the prologue of the history of what the French call the Albigensian affair".The chronicle opens with the preaching of Bernard of Clairvaux against the heretics of Verfeil, Haute-Garonne in 1145 and closes with the restitution, on 15 March 1275, of the confiscated lands of Roger-Bernard III of Foix.