Raffaele D'Amato, PhD, is the author of some 40 books and numerous articles on the militaries of Ancient Greece, the Roman Empire, Byzantium and the Middle Ages. For two years he taught at Fatih University, Istanbul as a visiting professor. He currently works as a lawyer and as an external researcher for the Laboratory of the Danubian Provinces at the University of Ferrara, Italy.
Andrey Negin was born, educated and works in Nizhny Novgorod, Russia. He holds a doctorate in Historical Sciences, and is Associate Professor in the Department of History of the Ancient World and Classical Languages at N.I. Lobachevsky State University, Nizhny Novgorod. His primary interest is the study of ancient Roman armour, his main theme of research being parade and ceremonial armours. He has published on these subjects in a number of Russian and foreign archaeological journals.