Nikolas O. Hoel is an Instructor of History at Northeastern Illinois University in Chicago, USA. His research interests focus on the religious and intellectual history of Late Antiquity.

Lydia M. Walker is the Assistant Professor of History and Religion and the Leman and Marie Barnhill Endowed Chair in Religious Studies at Barton College, USA. She examines gender, exegesis, hagiography, and crusading ideology in the thirteenth century.