M. S. G., an equestrian who, in AD 260, governed the province of Raetia as vir perfectissimus in place of a senatorial governor (agens vice praesidis). He was specifically sent to Raetia for this purpose. On 24/25 April 260, he defeated an army of Semnones near Augsburg and built a victory altar there in September of the same year ( = AE 1993, 1231b). He may have been born in the province of Germania inferior (cf. recently [2; 3. 226 f.; 4]).
1 L. Bakker, Raetien unter Postumus, in: Germania 71, 1993, 369-386
2 M. Christol, M. S. G.…