Résumé :
Basing on a new autograph by copist Malachias, alias Anonymus Aristotelicus, preserved in El Escorial, Ω I 7, this paper examines the intellectual milieu in which this 14th century scholar worked. It is concluded that Malachias was an hieromonachus in the monastery of Prodromus-Petra in Constantinople, and a more concrete historical identity is given to this figure.