What is "paeanius"

Paeanius was a late Roman Empire historian, author of a translation into Greek language of the Latin Breviarium historiae Romanae, the historical work of Eutropius.

The Breviarium was completed by Eutropius within 369: Paeanius' translation appeared before 380. The Breviarium was a compendium of ancient Roman history, used both as a textbook in schools and as a fast course on Roman history for the higher social classes (it was dedicated to Emperor Valens): Paeanius' translation allowed Greek-speaking people to have a graceful version of this compendium.