AMPELIUS, LUCIUS author of a short encyclopaedic work Liber memorialis in fifty chapters covering such diverse subjects as cosmography (and astronomy), geography and ethnography, theology and especially history. Not much is known about the author; he probably lived around the turn of the third century C.E. In some of the historical chapters, particularly 12-13 and 30-31, reference is made to Iranian, that is, mainly Achaemenid and Parthian matters. Ampelius drew most of his information on Iran from Cornelius Nepos and Pompeius Trogus (and indirectly from Herodotus).