Summary The proceedings of the SIEPM Colloquium at Nijmegen published in this volume bring together new evidence for how the corpus of late-medieval commentaries on the Sentences, especially from the second half of the fourteenth century, contributed to the development of philosophical psychology within the discipline of theology. The relation among the faculties of the soul, the limits of knowledge, hylomorphism and the union of soul and body, intuitive and abstractive cognition, the immortality of the soul, the experience of the beatific vision, divine foreknowledge and the knowability of species are some of the topics involving psychological issues that are examined in this volume. The wealth of new information presented in this volume results from the interpretation of previously unexplored sources. The essays in this volume demonstrate that the various parts and Books of Peter Lombard's Sentences, the standard textbook of theology in the Middle Ages, provided lecturers and commentators with a variety of loci for the discussion of philosophical topics, from the principia (Denys of Montina), the Prologue (Alfonsus Vargas of Toledo, Hugolino of Orvieto, John Regis, Francis Toti of Perugia), Book I (Gregory of Rimini, John of Mirecourt, Pierre Ceffons, Hugolino of Orvieto, Pierre d'Ailly, Peter of Candia, the Vienna Group, John Capreolus, Henry of Gorkum, Denys the Carthusian), Book II (Pierre Ceffons, Peter of Candia, Guillaume de Vaurouillon, Gabriel Biel, Denys the Carthusian), and Book III (Heymericus de Campo). This diversity, within large works on theology conceived broadly, constitutes a tradition parallel to that found in commentaries on Aristotle's De anima in the late Middle Ages. TABLE OF CONTENTS Monica BRÎNZEI, Introduction Christopher D. SCHABEL, Note on the Vernacular Name of Richardus de Mediavilla : of 'Menneville', Not 'Middleton' I. HUMAN COGNITION Amos CORBINI, Notitia intuitiva and complexe significabile at Paris in the 1340s: From Alphonsus Vargas Toletanus to Peter Ceffons Aurélien ROBERT, The Possibility of Cognizing Material Substances. The Evolution of a Philosophical Problem in Late-Medieval Commentaries on the Sentences Jeffrey C. WITT, Peter Plaoul and Intuitive Knowledge II. THE HUMAN SOUL Maarten J.F.M. HOENEN, Heymericus de Campo (?1460) Reads Peter Lombard: Late-Medieval Abbreviations of the Libri Sententiarum Thomas JESCHKE, Unum antiquum problema: Denys the Carthusian and John Capreolus on the Question Whether the Soul's Essence Is Distinct from Its Potencies. A Late-Medieval Starting Point William DUBA and Olivier RIBORDY, The Human Soul: Definitions and Differentiae in Late-Medieval Commentaries on the Sentences Kent EMERY, Jr., Denys the Carthusian's Sentential Teachings on the Nature and Operations of the Soul III. THEOLOGICAL ISSUES John T. SLOTEMAKER, Pierre d'Ailly and the Imago Trinitatis: The Sources of His Trinitarian Theology Severin KITANOV, Freedom in Heaven: Peter of Candia's Treatment of the Necessity or Contingency of Beatific Enjoyment Christopher D. SCHABEL, Henry of Langenstein, Henry Totting of Oyta, Nicholas of Dinkelsbühl and the Vienna Group on Reconciling Human Free Will with Divine Foreknowledge Monica BRÎNZEI, Epilogue: Commentaries on the Sentences in Paris around 1370 Index of Manuscripts Index of Ancient and Medieval Names Index of Modern and Contemporary Authors