sentences:  Thaumastus and his brother were both sons of another Apollinaris, praetorian prefect of Gaul before 409 and were friends with his successor Decimus Rusticus.Thaumastus was associated with Tonantius Ferreolus in the impeachment of Arvandus.He was the father of Eulalia, born in 425, married before 450 to Flavius Probus, Roman Senator.