Danica Summerlin is Lecturer in Medieval History at the University of Sheffield where her research focuses on the role of canon law in government and society in the central Middle Ages. She is one of three leaders of an international project revamping the Clavis Canonum, a key database for the study of medieval canonical collections available online via the Monumenta Germaniae Historica. She is the co-editor of The Use of Canon Law in Ecclesiastical Administration, 1000–1234 (2018) with Melodie H. Eichbauer.
'Undergraduate and graduate students interested in the impact of canon law should profit greatly from this work, as should those interested in dialogues between sacred and secular, theology and canon law, and the papacy and regional churches.' Jessalynn Lea Bird, Speculum: A Journal of Medieval Studies