Roman historian, of whom little is known beyond some general statements furnished by Justinus. He seems to have lived about the time of Augustus, and was descended from a Gallic family of the Vocontii; his father and grandfather having been soldiers, the one in the army of Cn. Pompeius, the other in that of Julius Caesar. All that is known of Trogus Pompeius beyond these vague accounts is, that he was called “a man of antique eloquence, and a most grave author.” His Historia Philippica, consisting of forty-four books, and including a view of the Macedonian empire, is now lost, but an abridgment of it by Justinus is still extant. All that is known respecting both Trogus and Justin, and their several works, will be found copiously set down in the Commentationes de Trogi Pompeii ejusque epitomatoris Justiniani fontibus et auctoritate, by Heeren.