Life of Constantine the Great (‹See Tfd›Greek: Βίος Μεγάλου Κωνσταντίνου, translit. Bios Megalou Kōnstantinou; Latin: Vita Constantini) is a panegyric written in Greek in honor of Constantine the Great by Eusebius of Caesarea in the 4th century AD. It was never completed due to the death of Eusebius in 339. The work provides scholars with one of the most comprehensive sources for the religious policies of Constantine's reign.[1] In addition to detailing the religious policies of the Roman Empire under Constantine, Eusebius uses Life of Constantine to engage several of his own religious concerns, such as apologetics, as well as a semi-bibliographic account of Constantine.