At the same time Gerontius, one of Constantine’s captains, revolted from him, and set up Maximus Emperor in Spain. Whereupon Constantine sent Edobec, another of his captains, to draw to his assistance, the Barbarians under Goar and Gundicar in Gallia, and supplies of Franks and Alemans from beyond the Rhone; and committed the custody of Vienne in Gallia Narbonensis to his son Constans. Gerontius advancing, first slew Constans at Vienne, and then began to besiege Constantine at Arles. But Honorius at the same time sending Constantius with an army on the same errand, Gerontius fled, and Constantius continued the siege, strengthened by the access of the greatest part of the soldiers of Gerontius. After four months siege, Edobec having procured succors, the Barbarian Kings at Ments, Goar and Gundicar, constitute Jovinus Emperor, and together with him set forward to relieve Arles. At their approach Constantius retired. They pursued, and he beat them by surprise, but not prosecuting his victory, the Barbarians soon recovered themselves; yet not so as to hinder the fall of the tyrants Constantine, Jovinus and Maximus. Britain could not be recovered to the Empire, but remained ever after a distinct kingdom.

The next year, A.C. 412, the Visigoths being beaten in Italy, had Aquitaine granted them to retire into: and they invaded it with much violence, causing the Alans and Burgundians to retreat, who were then depopulating of it. At the same time the Burgundians were brought to peace; and the Emperor granted them for inheritance a region upon the Rhine which they had invaded: and the same, I presume, he did with the Alans. But the Franks not long after retaking and burning Triers, Castinus, A.C. 415, was sent against them with an army, who routed them and slew Theudomir their King. This was the second taking of Triers by the Franks. It was therefore taken four times, once by the Vandals and thrice by the Franks.