Theodosius, a Roman general, beheaded in Carthage, A. D. 376. During the reign of Va-lentinian he was sent to the defence of Britain, in 367 crossed the channel at the head of a large army, and in two campaigns freed the country from the barbarians, strengthened the fortifications, and confirmed the Roman power. In 370 ho returned, was made master general of the cavalry, and was stationed on the upper Danube, where he defeated the Alemanni. When in 372 Firmus, a Moor, had made himself master of Mauritania and Numidia, and Count Romanus, the governor of Africa, unable to oppose, had joined him in rebellion, Theodosius was sent to that province to reduce it to its allegiance. At the head of a small body of men, he advanced into the heart of an unknown and hostile country, driving his enemy before him, until at last the usurper fled to Igmazen, king of the Isallenses. The latter being threatened with destruction for harboring him, Firmus strangled himself. Theodosius recovered Africa, but for some unassigned reason, probably because his name and services were too great for a subject, he was put to death.
From him descended a line of Ko-man emperors.