Probus (emperor)  Probus (; Marcus Aurelius Probus; c. 19 August 232 – September/October 282) was Roman Emperor from 276 to 282. Probus was an active and successful general as well as a conscientious administrator, and in his reign of six years he secured prosperity for the inner provinces while withstanding repeated invasions of barbarian tribes on almost every sector of the frontier. After repelling the foreign enemies of the empire Probus was forced to handle several internal revolts, but demonstrated leniency and moderation to the vanquished wherever possible. In his reign the facade of the constitutional authority of the Roman Senate was fastidiously maintained, and the conqueror, who had carried his army to victory over the Rhine professed himself dependent on the sanction of the Senate. Upon defeating the Germans, Probus re-erected the ancient fortifications of emperor Hadrian between the Rhine and Danube rivers, protecting the Agri Decumates, and exacted from the vanquished a tribute of manpower to resettle depopulated provinces within the empire and provide for adequate defense of the frontiers. Despite his widespread popularity, Probus was killed in a mutiny of the soldiers while in the middle of preparations for the Persian war, which would be carried out under his successor Carus. Probus was born between 230 and 235 (exact date of birth unknown) in Sirmium (modern day Sremska Mitrovica), Pannonia Inferior, the son of Dalmatius. According to the Alexandrian Chronicle, he was born sometime in the year 232. Probus entered the army around 250 upon reaching adulthood. He rose rapidly through the ranks, repeatedly earning high military decorations. Appointed as a military tribune by the emperor Valerian, at a very young age, in recognition of his latent ability, he justified the choice by a distinguished victory over the Sarmatians on the Illyrian frontier. During the chaotic years of the reign of Valerian, Illyria was the only province, generaled by such officers as Claudius, Aurelian and Probus, where the barbarians were kept at bay, while Gaul was overrun by the Franks, Rhaetia by the Alemans, Thrace and the Mediterranean by the Goths, and the east by Shapur I. Probus became amongst the highest placed lieutenants of Aurelian, reconquering Egypt from Zenobia in 273 A.D. Emperor Tacitus, upon his accession in 275, appointed Probus supreme chief of the east, granting him extraordinary powers in order to secure a dangerous frontier.