"We doubted of Ulpian, and are now more perplexed with Bartolus and Baldus." -Montaigne, Essays, III. 13 (1580) Bartolus of Sassoferrato (1913) by Cecil N. Sidney Woolf was originally written as a dissertation when he was a fellow at Cambridge University and expanded into a book that same year. This biography explores the theories and ideas of the distinguished Italian law professor and noted jurist of Medieval Roman Law. Woolf quotes much of Bartolus' writing which is considered to be the foundation of civil law. Bartolus earned high status among lawyers, sparking the adage: no one is a good jurist unless he is a Bartolist. Readers with an interest in great jurists must add this book to their personal collection.