Author of a work on ‘the return [of the Captivity from] Babylon, and on the Weeks of Daniel’, known from a single ms. where he is described as ‘nosok[omos] (infirmarian)... of Edessa ’. The work, whose end is lost, is primarily concerned with chronological problems, reconciling and interpreting the beginnings and ends of Jeremiah’s ‘70 years’ (Jer 25:11–12), Daniel’s ‘70 weeks’ (Dan 9:24–5) and the ‘three weeks’ of his fast (Dan 10:2). Eusebius ’s Chronicle is the only source specifically mentioned.