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http://en.wikipedia.org/wiki/Sextus_Claudius_Petronius_Probus

Family
According to the historical study "Fifth-century Gaul: A Crisis of Identity?" (1992) by John Drinkwater and Hugh Elton, Probus was a son of Petronius Probinus, Consul in 341 and "Claudia"/"Clodia", a sister of Clodius Celsinus Adelphus. Faltonia Betitia Proba, a Christian poet, was sister to this Probinus and wife of Adelphus. Hermogenianus was a son of Proba and Adelphus.[1]
The elder Probinus and Proba were children of Petronius Probianus, Consul in 322. Drinkwater and Elton consider his wife to be an "Anicia", a sister to Amnius Anicius Julianus. Claudia and Adelphus were children of Clodius Celsinus and Demetrias.[2]
The eldest Probianus was a son of Petronius Annianus, Consul in 314. Drinkwater and Elton consider his wife to be "Proba", a daughter of Probus.[3]
Probus was married to her first cousin once removed on her father's side Anicia Faltonia Proba (ca 365 - 410-432), daughter of Quintus Clodius Hermogenianus Olybrius and wife Turrenia Anicia Juliana or Anicia Faltonia Proba, by whom he had two sons, Probinus and Olybrius, one of them the father of Petronius Maximus.

Career
He was Proconsul of Africa in 358[4] and consul as colleague of the Emperor Gratian in 371. He also held the posts of Prefect of Illyricum in 364, Prefect of Gaul in 366, Prefect of Italy with Illyricum and Africa in 368-375 and again in 383-384.[5] Ammianus Marcellinus, in his History (Book 27, ch.11) portrays him as a vain and rapacious man who 'owned estates in every part of the empire, but whether they were honestly come by or not is not for a man like me to say'.[6] Ammianus says he was one who was benevolent to his friends and a pernicious schemer against his enemies, servile to those more powerful than him and pitiless to those weaker, who craved office and exercised enormous influence through his wealth, always insecure and petty even at the height of his power.
In 372 he defended Sirmium against barbarian attack and in 375 was accused of corruption and repression in extorting taxes for Valentinian I. On various inscriptions he describes himself vaingloriously as 'the summit of the Anician house' (Aniciae domus culmen), 'most learned in all subjects' (omnibus rebus eruditissimus) and 'the acme of the nobility, the light of literature and eloquence' (nobilitatis culmen, litterarum et eloquentiae lumen). As these phrases suggest he was a patron of literature, including the poet Ausonius. His two sons Probinus and Olybrius continued the tradition by being the patrons of Claudian, who paints a flattering picture of Probus in his Panegyricus dictus Probino et Olybrio consulibus written to celebrate his sons' joint consulship in 395. Through his sons, Probus was the paternal grandfather of two Emperors, Petronius Maximus and Olybrius.
His date of death is unknown, though he was still living in 390 when, according to the Vita Ambrosii of Paulinus of Nola, two Persian noblemen presented themselves before Theodosius I at Mediolanum but departed the next day for Rome in order to see for themselves Petronius Probus, the pride of the Roman aristocracy, a legend in his lifetime.