while the cataloguer supposed Mandeville to have been the author of a concluding piece entitled "La Venianche de nostre Signeur Jhesu-Crist fayle par Vespasian fit del empereur de Romme et commeet lozeph daramathye fu deliures de la prizon". From the treatise on herbs a passage is quoted asserting it to have been composed in 1357 in honour of the author's natural lord, Edward III, king of England. This date is corroborated by the title of king of Scotland given to Edward, who had received from Baliol the surrender of the crown and kingly dignity on 20 January 1356, but on 3 October 1357 released King David and made peace with Scotland: unfortunately it is not recorded whether the treatise contains the author's name, and, if so, what name.