In 418, as comes, he suppressed a revolt in Palestine, and it was perhaps in view of this success that the following year, in 419, he was promoted to consulposterior, concurrently with Monaxius, and Magister militum praesentialis.[1] According to Sozomen, he was one of the most powerful figures at the court of Theodosius II.[2]
Plinta was a Goth. He was related to Aspar (CILXI, 2637), likely as his father-in-law, and father of Armatius. In 450 his daughter was given in marriage by Theodosius II to Constantius, the secretary of Attila. Plinta was an Arian of the sect of Psatirians [it] (the followers of Marinus of Thrace), who, in Constantinople in 419, rejoined the other Arians.
In 431 he tried, unsuccessfully, to place Saturninus on the episcopal throne of Marcianopolis in place of the Nestorian Dorotheus. In 432 he advised the Bishop of Antioch, John, to accept the mediation of Theodosius II and to reconcile with the Patriarch of Alexandria, Cyril. Between 435 and 440 he asked the emperor to send him as ambassador, along with Flavius Dionysius, to Rugila, the King of the Huns. After Rugila died, Plinta and Epigenes were sent to his successor, Attila, with whom they negotiated and concluded the Treaty of Margus or the Peace of Horreum Margi.[3]
^Jones, AHM and Martindale, John, The Prosopography of the Later Roman Empire, "Fl. Plinta", volume 2, Cambridge University Press, 1992, ISBN0-521-20159-4, pp. 892-893.
Sozomen (1890). "Ecclesiastical History". In Schaff, Philip; Wace, Henry (eds.). Nicene and Post-Nicene Fathers, Second Series. Vol. 2. Translated by Chester D. Hartranft. Buffalo, NY: Christian Literature Publishing Co. Retrieved 13 March 2016 – via New Advent.