Roman Gaul
The Kingdom of Soissons began when Emperor Majorian (457–461) appointed Aegidius as "magister militum" of Roman Gaul. When Majorian was killed on the orders of Ricimer in 461, Aegidius maintained his own rule in the remnants of Roman Gaul. In the chaos of contemporary Gaul, he maintained his power against Franks to his east and Visigoths to his south; his relations to the Romano-British of Brittany may have been friendly.