sentences:  The "Canso" was a reworking of an earlier Occitan epic history of the First Crusade written by one Gregory Bechada and commissioned by Bishop Eustorge of Limoges probably between 1106 and 1118.Being based partially on eyewitness testimony, the "Canso" serves as a source in its own right for the Occitan contribution at Antioch.It emphasises the feats of the knights of southern France, especially Gouffier de Lastours, and southern Italy, the Italo-Normans under Bohemond of Taranto.