Gnaeus Pompeius Trogus , known as Pompeius Trogus, Pompey Trogue, Cneius Pompeius Trogus or Trogue Pompey, was a 1st-century BC Romanhistorian of the Celtic tribe of the Vocontii in Gallia Narbonensis, which flourished during the age of Augustus, nearly contemporary with Livy.