Of Thraco-Roman origin, Maximinus Thrax (173 - 238 CE) was a child of low birth, and was seen by the Senate as a barbarian and not a true Roman, despite Caracalla's Antonine Constitution granting citizenship to all freeborn citizens of the Empire. A career soldier, Maximinus rose through the ranks until he commanded a legion himself. He was one of the soldiers who were angered by Emperor Severus Alexander's payments to the Germanic tribes for peace, and plotted with them to assasinate the emperor in 235 CE. The Praetorian Guard declared Maximinus emperor after the act, a choice that was only grudgingly confirmed by the Senate, who were disgusted at the idea of a peasant becoming emperor. Maximinus despised the nobility, and was heavy-handed in dealing with anyone suspected of plotting against him. In 238 CE, revolt arose in the province of Africa during his reign, with the governor Gordian I and his son, Gordian II, declared co-emperors. The Roman Senate quickly switched allegiance and acknowledged the claim of the Gordians. Maximinus immediately marched on Rome to deal with the Senatorial uprising. The Gordians were swiftly defeated and died after less than a month of being co-emperors, with the Senate becoming divided on how to act, some preferring Gordian's grandson, Gordian III, while others elected two of their own, Pupienus and Balbinus, as co-emperors. Rome became engulfed in severe riots and street fighting. Maximinus died before he reached Rome, assassinated by his own soldiers during the siege of Aquileia. Pupienus and Balbinus became undisputed co-emperors. Maximinus' reign is often seen as the beginning of the Crisis of the Third Century, which would see the Roman Empire almost collapse from internal unrest, economic disaster and foreign invasions.