Aegidius (died 464 or 465) was ruler of the short-lived Kingdom of Soissons from 461–464/465 AD. Before his ascension, he became magister militum per Gallias (Master of the Soldiers for Gaul) serving under Majorian, in 458 AD. An ardent supporter of Majorian, Aegidius rebelled against Ricimer when he assassinated Majorian and replaced him with Libius Severus; Aegidius may have pledged his allegiance to Leo I, the Eastern Roman Emperor. Aegidius repeatedly threatened to invade Italy and dethrone Libius Severus, but never actually launched such an invasion; historians have suggested he was unwilling to launch an invasion due to the pressure of the Visigoths, or else because it would leave Gaul exposed. Aegidius launched several campaigns against the Visigoths and the Burgundians, recapturing