Ostrogotha
Ostrogotha was a leader of the eastern Goths in the Ukraine, who invaded Roman Moesia during the Crisis of the Third Century, mentioned by the 6th-century historian Jordanes. He was a contemporary of King Cniva. Jordanes' account differs with those of Zosimus and Joannes Zonaras, who do not mention Ostrogotha, and therefore his existence was questioned. Cassiodorus, one of the sources of Jordanes, also mentioned Ostrogotha as one of the ancestors of Amalasuintha, daughter of Theoderic the Great. However, the discovery of lost fragments of the "Sythica" of Dexippus give confirmation to his existence. Jordanes. Jordanes reported that  during the reign of the Emperor Domitian the Goths broke a truce they had with the Roman emperors (XIII 76). After several victories, including a successful defence against a Roman counterattack, Jordanes claimed that the Goths likened their leaders to demigods or "Ansis" (XIII 78). According to Jordanes, Ostrogotha was part of the Amal family, whose genealogy he recited, making him an ancestor of Ermaneric and Theoderic the Great (XIV 79). Jordanes reported that Ostrogotha crossed the Danube during the reign of Philip the Arab and invaded the provinces of Moesia and Thrace. The later emperor Decius could not defeat  him either, whereupon Ostrogotha again raided Roman territory. Ostrogotha also fended off a challenge from the kinsfolk of the Goths, the Gepids, under the leadership of their king Fastida. After his death, Jordanes mentions a new ruler of Goths, Cniva. Dexippus. In the Vienna fragment of Dexippus, Cniva and Ostrogotha are contemporaries and competitors. Ostrogotha was still alive when Cniva conquered Philippopolis and Ostrogotha was jealous of the high regard Cniva was given because of this victory. He set out to battle the Roman leader Decius and was apparently the Gothic leader responsible for the defeat of Decius (which is  also reported by Jordanes as happening after Phillipopolis). Cniva was described as a king (βασιλεύς) while Ostrogotha was described as an archon or leader of Scythians (τῶν Σκυθῶν ἄρχων).