Huguccio was an important lawyer of the medieval church, bishop of Ferrara, and one of the greatest representatives of twelfth-century scholasticism. In this book-length study of this influential figure, Wolfgang P. Müller provides a critical account of the biographical information on the man and his writings. He discusses the various aspects of Huguccio's career and thought as well as the manuscript tradition of some of his works. The author's scholarship rests on direct consultation and painstaking analysis of enormous quantities of manuscript material. This book provides the point of departure for anyone wishing to study Huguccio first-hand. It will be worthy reading for students of medieval canon law and an essential addition to all libraries supporting research in medieval studies.