Geoffrey Greatrex is Professor in the Department of Classics and Religious Studies at the University of Ottawa, Canada. His research focuses on Late Antiquity, in particular Procopius of Caesarea and the reign of Justinian: his monograph, Rome and Persia at War, 502-532, was published in 1998, while a source book, The Roman Eastern Frontiers and the Persian Wars, A.D. 363-630, co-authored with Sam Lieu, appeared in 2002. He has also edited a translation and commentary of The Chronicle of Pseudo-Zachariah Rhetor (Liverpool, 2011) with two collaborators, and brought out several volumes of conference proceedings. In 2022 his commentary on Procopius' Persian Wars was published by Cambridge University Press along with a new translation. Stephen Mitchell graduated from Oxford University in 1970 and obtained his doctorate in 1975. He has held academic positions in the UK at the universities of Bristol, Swansea and Exeter. Since 1970 he has been a member, Council Member, Honorary Secretary and Chair of the British institute at Ankara, and Turkey has been a lifelong focal point for field work and academic research. He was made a Fellow of the British Academy in 2002 and awarded an honorary doctorate in 2006 by the Humboldt University, Berlin, where he currently lives.