Alatheus and Saphrax were Greuthungi chieftains who served as co-regents for Vithericus, son and heir of the Gothic king Vithimiris.
He helped in the leadership of the great Gothic migration before the Hun onslaught, he crossed the Danube while Rome was busy with Thervingi refugees in that year.
He continued to raid Thrace and northern Greece, but was defeated by Theodosius the Great's general Promotus, and he settled on the north side of the Danube.
[7] Ending in defeat for Rome, many of their followers rampaged through the Eastern Empire until they were settled years after by Theodosius treaties in Pannonia Prima.
[8] A fictionalized account of Saphrax and Altheaus' deeds is featured heavily in the final episode of the animated series The Venture Bros.