Dr. John D.  Hosler

Associate Professor; Honors Faculty


Medieval Europe; military history; history of England; pre-modern religion

Ph.D. History - Univ. of Delaware
M.A. History - Iowa State Univ.
M.A. English Literature - Iowa State Univ.
B.A. English/History - Iowa State Univ

Professor Hosler is a historian of the European Middle Ages. His research concentration is in medieval military history and its historiographic, political, and religious contexts; in particular, he is an expert on warfare in Anglo-Norman/Angevin England in the twelfth century. He sits on the Editorial Advisory Board for The Journal of Military History and is a member of the United States Commission on Military History. He is also the Chair of the Awards Committee for De Re Militari (the Society for Medieval Military History) and the Medieval Military Editor for Brill's Digital Library on War Studies. At Morgan State, he teaches The Ancient World, Medieval & Renaissance Europe, History of England I & II, the Crusades, the American Military Experience, Historiography, and World History I & II (Honors).

Select Publications (full CV here)

  • Books
  • Articles
    • "'The Golden Age of Historiography': Records and Writers in the Reign of Henry II," History Compass 12:5 (2014): 398-411.
    • "Hundred Years War," in Oxford Bibliographies Online: Military History, ed. D. Showalter (Oxford UP, 2013).
    • "The Brief Military Career of Thomas Becket," Haskins Society Journal 15 (2006): 88-100.
    • "Henry II's Military Campaigns in Wales, 1157 and 1165," Journal of Medieval Military History 2 (2004): 53-71.
  • Book Chapters
    • "Why Didn't King Stephen Crusade?" in Medieval Mobilities from Scandinavia to the Slavic Lands, eds. M. O'Doherty and F. Schmieder (Brepols, forthcoming in 2014).
    • "Gregory the Great's Gout: Suffering, Penitence, and Diplomacy in the Early Middle Ages," in Where Heaven and Earth Meet: Essays on Medieval Europe in Honor of Daniel F. Callahan, eds. M. Frassetto, M. Gabriele, and J.D. Hosler (Brill, 2014), 11-32.
    • "The Norman Era," in Knights: In History and Legend (Global Books, 2009), 166-83.
    • "Revisiting Mercenaries Under Henry fitz Empress, 1167-1188," in Mercenaries and Paid Men: the Mercenary Identity in the Middle Ages, ed. J. France (Brill, 2008), 33-42.
    • "William of Newburgh, Henry II, and the Development of English Anti-Judaism," in Christian Attitudes towards the Jews in the Middle Ages: a Casebook, ed. M. Frassetto (Rutledge, 2007), 167-82.
  • Conference Proceedings & Encyclopediae
    • "Military Technology in the Writings of John of Salisbury," in ACTA 2012, Technology and Warfare: 38th International Congress of Military History Proceedings, eds. D. Minchev, J. Baev, and K. Gozev (Sofia, 2013), 71-77.
    • "Henry II, king of England" and "Richard I, king of England," in The Encyclopedia of War, ed. G. Martel, 5 vols. (Wiley-Blackwell, 2011).
    • "Henry II," "Mercenaries," "Robert Curthose," "Rochester, Siege of (1088)," and "William the Conqueror," in Medieval Warfare and Military Technology: an Encyclopedia, ed. C. Rogers, 3 vols. (Oxford UP, 2010).
    • "Peter of Celle," in The Oxford Dictionary of the Middle Ages, ed. R.E. Bjork, 4 vols. (Oxford UP, 2010).