Dr Guy Perry

Fellow by Special Election of Keble College; Principal and Associate Professor at the Middlebury-CMRS Oxford Humanities Program


Dr Guy Perry did his BA/MA, MSt and DPhil at Lincoln College, Oxford, where his doctorate was supervised by Professor Christopher Tyerman. He then served as a tutor or lecturer at a wide range of universities across the UK: from Royal Holloway and Leeds to St Peter’s and Merton Colleges, Oxford. Dr Perry's research focuses on social and geographical mobility amongst the French-speaking aristocracy during the ‘age of the Crusades’.

His publications include John of Brienne: King of Jerusalem, Emperor of Constantinople, c.1175-1237 (Cambridge University Press, 2013); The Briennes: The Rise and Fall of a Champenois Dynasty in the Age of the Crusades, c.950-1356 (Cambridge University Press, 2018); and a co-edited volume, The Fifth Crusade in Context: The Crusading Movement in the Early Thirteenth Century (Routledge, 2017).

Future plans include a trade book on the relationship between Church and State in the central Middle Ages, and an academic monograph on the subject of the Emperor Frederick II, considered specifically in relation to the Crusades and the Latin East.


  • The Crusades
  • England, France and Italy in the Middle Ages
  • The Middle East in the Middle Ages
  • The Papacy and the Catholic Church
  • Religion and the State
  • Medieval History

Media experience

Dr Guy Perry has served as an expert for newspapers such as The Telegraph. He has also acted as an advisor for The History Detectives, which was broadcast in the US by PBS. In addition, Dr Perry has appeared on podcasts like History’s Most


English, French, Latin