Latin sets the end of Late Latin when Romance began to be written, "Latin retired to the cloister" and "Romanitas lived on only in the fiction of the Holy Roman Empire." The final date given by those authors is AD 900. Through the death of Boethius Domitius Ulpianus (170–228), jurist, imperial officer Julius Paulus Prudentissimus (2nd & 3rd centuries), jurist, imperial officer Aelius Marcianus (2nd & 3rd centuries), jurist Herennius Modestinus (3rd century), jurist Censorinus (3rd century), historian, essayist Quintus Gargilius Martialis (3rd century), horticulturalist, pharmacologist Gaius Asinius Quadratus (3rd century), historian Quintus Septimius Florens Tertullianus (160–220), "the father of Latin Christianity", polemicist against heresy Thascius Caecilius Cyprianus (200–258), converted rhetorician, bishop of Carthage, martyr, saint Novatianus (200–258), theologian, rival pope, excommunicant Quintus Serenus Sammonicus (2nd century, early 3rd century), scholar, educator Commodianus (3rd century), poet, Christian educator Lucius Caelius Firmianus Lactantius (240–320), converted rhetorician, scholar, Christian apologist and educator Ammianus Marcellinus (4th century), soldier, imperial officer, historian Claudius Claudianus (4th century), court poet Gaius Julius Solinus (3rd or 4th century), topical writer Nonius Marcellus (3rd or 4th century), topical writer Marcus Aurelius Olympius Nemesianus (fl. 283), poet Aquila Romanus (3rd century), rhetorician Eumenius of Autun (3rd century), educator Aelius Festus Aphthonius (3rd or 4th century), grammarian Calcidius (4th century), translator Gaius Marius Victorinus (4th century), converted philosopher Arnobius of Sicca (4th century), Christian apologist Constantine I (272–337), first Christian emperor Nazarius (4th century), rhetorician, educator Gaius Julius Victor (4th century), rhetorician Gaius Vettius Aquilinus Juvencus (4th century), Christian poet Nonius Marcellus (3rd and 4th centuries), grammarian, lexicographer Julius Firmicus Maternus (4th century), converted advocate, pagan and Christian writer Aelius Donatus (4th century), grammarian, rhetorician, educator Palladius (408/431 – 457/461), saint, first bishop of Ireland Sextus Aurelius Victor (320–390), imperial officer, historian Eutropius (4th century), imperial officer, historian Aemilius Magnus Arborius (4th century), poet, educator, friend of the imperial family Decimius Magnus Ausonius (c. 310 – 395), poet, rhetorician, educator, friend of the imperial family Claudius Mamertinus (4th century), imperial officer, panegyricist, embezzler Hilarius (4th century), converted neo-Platonist, theologian, bishop of Poitiers, saint Ambrosius (337/340–397), theologian, Bishop of Milan, saint Lucifer (d. 370/371), theologian, Bishop of Sardinia Priscillianus (d. 385), theologian, first person executed as a heretic Flavius Sosipater Charisius (4th century), grammarian Diomedes Grammaticus (4th century), grammarian Postumius Rufus Festus Avienius (4th century), imperial officer, poet, translator Priscianus Caesariensis ( 500), grammarian See also Decline of the Roman Empire