Macrobius

Ambrosius Theodosius Macrobius was a fifth century writer of a Neoplatonist commentary on Cicero's Somnium Scipionis (Dream of Scipio), which is found in Cicero's De Republica book vi, De verborum Graeci et Latini differentiis vel societatibus, and a dialogue in 7 books known as Convivia Saturnalia. He may have come from Africa and he is associated with a praetorian prefect of 430 A.D.

Source:

"Macrobius, Ambrosius Theodosius" The Concise Oxford Companion to Classical Literature. Ed. M.C. Howatson and Ian Chilvers. Oxford University Press, 1996.