John (nephew of Vitalian)

John (Ioannes, "John the Sanguinary", fl.537–553), the nephew of the rebel Vitalian, was an East Roman (Byzantine) general under Justinian I (r. 527–565), who was active in the Gothic War in Italy and against the Gepids in the western Balkans. He was married to Justina, the daughter of Justinian's cousin Germanus.

AllegianceByzantine Empire
Rankmagister militum
RelationsBouzes, Coutzes and Venilus (cousins or brothers)
Vitalian (uncle or father)