Brill's new Pauly online, 10 February 2011 (Ambrosius Theodosius Macrobius, author of Saturnalia, Commentarii in Somnium Scipionis, De differentiis et societatibus Graeci Latinique verbi; otherwise unknown; persons who appear in Saturnalia are well-known Roman aristocrats from the late 4th century AD)
His Aur. Theodosii Macrobii v. c. et illustris Opera, 1774 t.p. (Aur. Theodosii Macrobii ...) p. 699 (Ambrosii Macrobii Theodosii ...)
His Commento al Somnium Scipionis, c1983- v. 1, t.p. (Macrobio) p. 35 (Ambrogio Teodosio Macrobio)