The Roman d'Alexandre en prose (Prose Alexander-Romance) is one of many medieval "Alexander romances" relating the adventures of Alexander the Great, which were by then greatly elaborated with fantastical additions to the historical accounts. Alexander was one of the medieval "Nine Worthies," and his journeys eastward—and most especially the strange and exotic people and animals he encountered there—were treated in a number of different texts in a variety of genres. Based on the relatively large number of surviving manuscripts, as well as the deluxe quality of many of these productions, the Old French Roman d'Alexandre en prose can be considered the most popular and successful vernacular prose treatment of the legend. Source: Wikipedia (en)