Prior to Aegidius' appointment as magister militum per Gallias by the Emperor Majorian, the territory of Lyonesse was an integral part of the Western Roman Empire proper. For its rulers then, see List of Roman emperors and Praetorian Prefects of Gaul. Gallia Lugdunensis was conquered in 486 by Clovis I of the Salian Franks, becoming the Neustrian part of the Merovingian realm.