Elizabeth M. Hallam holds honorary academic appointments at the University of East Anglia, UK, and the University of York, UK. Until 2016 she held the position of Director of Information Services and Librarian at the House of Lords, and she is now a Leverhulme Trust Emeritus Research Fellow, currently working on the architectural history of the Palace of Westminster.

Charles West has been teaching and researching at the University of Sheffield, UK, since 2008, where he is a Reader in Medieval History. He has published widely on medieval European history and sits on the editorial boards for Early Medieval History and the History Workshop Journal.