Julius Valerius Alexander Polemius
Julius Valerius Alexander Polemius (third to fourth century AD) was a translator of the Greek Pseudo-Callisthenes, the romantic history of Alexander the Great, to the Latin Res gestae Alexandri Macedonis, in three books: birth; acts; death. The work is important in connection with the transmission of the Alexander story in the Middle Ages.
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Alexander Polemius is tentatively identified by historians with one of the Roman consuls for the year 338. The appointment was unusual, as the emperor Constantine I had died the previous year, and custom prescribed that a new emperor – in this case, Constantine's sons – assumed the consulship in the year following his accession. This led Timothy Barnes to suggest that Polemius, who was probably a general, played a leading role in the purge which killed many members of the imperial family in 337, securing the succession of Constantine's sons, and that he received the consulship as a belated reward for this service. In 345, the same Polemius was a comes under the emperor Constantius II, and wrote a letter to the exiled bishop of Alexandria, Athanasius, encouraging him to return to his see.