A nearly sudden death, which naturally did not fail to arouse suspicions of poisoning, took the life of M. on 26 January 457, after seven years of rule (450–57).
BIBL.: O. Seeck, Geschichte des Untergangs der antiken Welt. VI. Berlin 1920; E. Stein, Geschichte des spätromischen Reiches. I, Vienna 1928, p. 465.