There is no contemporary English mention of any English knight named Jehan de Mandeville, nor are the arms said to have been on the Liège tomb like any known Mandeville arms. However George F. Warner has suggested that de Bourgogne may be a certain Johan de Bourgoyne, who was pardoned by parliament on 20 August 1321 for having taken part in the attack on the Despensers (Hugh the Younger and Hugh the Elder), but whose pardon was revoked in May 1322, the year in which "Mandeville" professes to have left England. Among the persons similarly pardoned on the recommendation of the same nobleman was a Johan Mangevilayn, whose name appears related to that of "de Mandeville", which is a later form of "de Magneville".