ABSTRACT
Among the military leaders of the Khurramite revolt against the Abbasids the oriental sources mention a certain Naṣr. His role in the movement and his identity have been subject to intense debate since Henri Grégoire proposed his identification with the Persian Theophobos, mentioned in the Greek sources as one of the most trusted men of the emperor Theophilos, even his presumptive heir to the throne at the beginning of the reign. This identification is by no means a secondary issue for the understanding of Theophilos’ policies towards the east. Accordingly we will submit it to a detailed analysis in the pages that follow.
