According to an entry in the
Suda, Onoulphus was a Scirian on his mother's side and a "Thuringian" on his father's side, and his brother Odoacer would have shared at least in their father's Thuringian heritage. Scholars consider that at least in this record the "Thuringi" must be equivalent to the
Turcilingi, who were a non-Roman people whose soldiers were led by Odoacer as "king" in the Italian military. (There is no consensus among scholars about whether the Turcilingi and Thuringi can be more generally equated.) In 448/9 the father of Onoulphus and Odoacer,
Edeka, was one of the most trusted military chiefs at the court of
Attila, King of the
Huns. After the death of Attila in 453, Edeka and Onoulphus were mentioned as the two chiefs of the "remnants of the Scirii", after they were devastatingly defeated in battle by the Ostrogoths. As part of a bigger alliance they subsequently fought the Ostrogoths a second time at the
Battle of Bolia in 468/9, and were again defeated by the Ostrogoths under their new king
Theodemir. Onoulphus joined the Roman army in the 470s and rose through its ranks. He found a protector in the general
Armatus, who had him appointed first
comes and in 477,
magister militum per Illyricum, commander in chief of the
Balkan army. In that same year, by order of the Emperor
Zeno, Onoulphus killed Armatus, despite his having greatly benefited by the latter's protection (sources state that Armatus lent him a huge sum to pay for a banquet). Onoulphus kept his office until 479, when he fell out of favour. He then found refuge with his brother
Odoacer, who by then had become king of Italy. One of the duties he carried out for his brother was a campaign against
Fredericus, who had succeeded his father
Feletheus as king of the
Rugians. Onoulphus found it necessary to evacuate the remaining Romans and resettled them in Italy. The remaining Rugians fled and took refuge with the Ostrogoths; the abandoned province was settled by the
Lombards by 493. He remained loyal to Odoacer during his brother's war for survival against
Theodoric the Great, king of the
Ostrogoths, standing with him during the
siege of Ravenna. After Odoacer's death, Onoulphus was killed by archers while seeking refuge in a church. == Connection between Onoulphus, Odoacer and Armatus ==