Wilfried Hartmann is emeritus professor of the medieval history of canon law at the University of Tubingen. Kenneth Pennington is Kelly-Quinn Professor of Ecclesiastical and Legal History at The Catholic University of America. He is the author of numerous works including Pope and Bishops: The Papal Monarchy in the Twelfth and Thirteenth Centuries and The Prince and the Law, 1200-1600: Sovereignty and Rights in the Western Legal Tradition. Hartmann and Pennington are coeditors of the History of Medieval Canon Law series.

Wilfried Hartmann is emeritus professor of the medieval history of canon law at the University of Tubingen. Kenneth Pennington is Kelly-Quinn Professor of Ecclesiastical and Legal History at The Catholic University of America. He is the author of numerous works including Pope and Bishops: The Papal Monarchy in the Twelfth and Thirteenth Centuries and The Prince and the Law, 1200-1600: Sovereignty and Rights in the Western Legal Tradition. Hartmann and Pennington are coeditors of the History of Medieval Canon Law series.

Wilfried Hartmann is emeritus professor of the medieval history of canon law at the University of Tubingen. Kenneth Pennington is Kelly-Quinn Professor of Ecclesiastical and Legal History at The Catholic University of America. He is the author of numerous works including Pope and Bishops: The Papal Monarchy in the Twelfth and Thirteenth Centuries and The Prince and the Law, 1200-1600: Sovereignty and Rights in the Western Legal Tradition. Hartmann and Pennington are coeditors of the History of Medieval Canon Law series.