whose works are included in the collection which commonly bears the title " Duodecim Panegyrici Veteres" [DREPANIUS], was a native of Autun, but a Greek by extraction; for his grandfather was an Athenian, who acquired celebrity at Rome as a teacher of rhetoric, and having subsequently removed to Gaul, practised his profession until past the age of eighty, in the city where his grandson, pupil, and successor, was born. Eumenius flourished towards the close of the third and at the beginning of the fourth centuries, and attained to such high reputation that he was appointed to the office of magister sacrae memoriae, a sort of private secretary, in the court of Constantius Chlorus, by whom he was warmly esteemed and loaded with favours. The precise period of his death, as of his birth, is unknown, but we gather from his writings that he had, at all events, passed the prime of life. The city of Cleves at one period claimed him as their townsman, and set up an ancient statue, which they declared to be his effigy.
[W.R]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890