 The chief work of this council (which included representatives from the Ecclesiastical provinces of Sens and Reims and at which Saint Bernard of Clairvaux assisted) was the condemnation of Abelard's doctrine.Abelard appealed from the council to Rome, but the bishops of both provinces insisted in two letters to Innocent II that the condemnation be confirmed.Martin Deutsch dates this council to 1141 but the Abbé Vacandard attempted to prove by the letter from Peter the Venerable to Héloïse, the "Continuatio Praemonstratensis", the "Continuatio Valcellensis" and the list of the priors of Clairvaux that Baronius' date (1140) is correct.