At that time, the only literature being produced in Sardinia was mostly in Latin: the native (Paleo-Sardinian) and non-native (Punic) pre-Roman languages were then already extinct (the last Punic inscription in Bithia, southern Sardinia, is from the second or third century AD). Some engraved poems in ancient Greek and Latin (the two most prestigious languages in the Roman Empire) are to be seen in Viper Cave, Cagliari, ("Gruta 'e sa Pibera" in Sardinian, "Grotta della Vipera" in Italian, "Cripta Serpentum" in Latin), a burial monument built by Lucius Cassius Philippus (a Roman who had been exiled to Sardinia) in remembrance of his dead spouse Atilia Pomptilla. We also have some religious works by Saint Lucifer and Eusebius, both from Caralis (Cagliari).