Ivo of Chartres was one of the most learned scholars of his time, a powerful bishop and a major figure in the so-called 'Investiture Contest'. Christof Rolker here offers a major new study of Ivo, his works and the role he played in the intellectual, religious and political culture of medieval Europe around 1100 AD. Comparing Ivo s extensive correspondence to the contemporary canon law collections attributed to him, Dr Rolker provides a new interpretation of their authorship. Contrary to current assumptions, he reveals that Ivo did not compile the Panormia, showing that its compiler worked in a distinctly different mental framework from Ivo. These findings call for a reassessment of the relationship between Church reform and scholasticism and shed new light on Ivo as both a scholar and bishop.".