In this volume dedicated to medieval canon law expert Kenneth Pennington, leading scholars from around the world discuss the contribution of medieval church law to the origins of the western legal tradition. The stellar cast assembled by editors Wolfgang P. Müller and Mary E. Sommar includes younger scholars as well as long-established specialists in the field. Müller's introduction provides the first comprehensive survey of investigative trends in the field in more than twenty years. Subdivided into four topical categories, the essays cover the entire range of the history of medieval canon law from the sixth to the sixteenth century. The first section concentrates on the canonical tradition before the advent of academic legal studies in the twelfth century. The second addresses the formation of canonistic theory. The third and fourth sections consider the intellectual exchanges between canon law and other fields of study, as well as the practical application of canons in day-to-day court proceedings. Though the twenty-seven essays included in this volume are quite diverse, taken together they provide an outstanding overview of the latest research and cutting-edge scholarship on the topic. 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, and is coeditor of the CUA Press series, History of Medieval Canon Law. Wolfgang P. Müller, associate professor of history at Fordham University, is author or editor of several publications in English and German including Huguccio: The Life, Works, and Thought of a Twelfth-Century Jurist. Mary E. Sommar, currently a scholar in residence at the Stephan Kuttner Institute of Medieval Canon Law in Munich (Germany), concentrates in her published work on Gratian's Decretum. PRAISE FOR THE BOOK: "Kenneth Pennington has emerged as one of the leading experts on medieval canon law. . . . This tribute for Pennington's sixty-fifth birthday contains both brief notes and substantial articles." -- Thomas Izbicki, Sixteenth Century Journal