La recherche comporte deux aspects principaux. Premièrement, la thèse analyse une solution réaliste au problème des universaux datant du début du XIIe siècle et que l’on nomme ici ‘théorie de l’indiuiduum’ (= ThI; aussi connue sous les noms de ‘théorie de l’indifférence’, ‘théorie du status’, ‘deuxième théorie de la collectio’ etc.). Selon ThI, l’universel est l’individu lui-même dans l’un de ses status. ThI utilise en outre des éléments abélardiens pour une solution tout à fait opposée à celle d’Abélard. ThI est ici étudiée dans le cadre d’une analyse des solutions réalistes au problème des universaux présentées par cinq sources : la Logica ‘Ingredientibus’ d’Abélard, la Logica ‘Nostrorum’, le ‘De generibus et speciebus’ (qu’on cite à partir d’une transcription directe du ms. Orléans, BM, 266, pp. 154b-163a), le traité ‘Quoniam de generali’ et le commentaire inédit ‘P17’ à l’Isagoge du ms. Paris, BnF, lat. 3237, ff. 123ra–124va et 125ra–130rb. Cette recherche prend en compte non seulement ThI, mais aussi les autres théories réalistes (la théorie de l’essence matérielle, une variante de celle-ci, la théorie de la collectio et une troisième solution réaliste de la ‘Nostrorum’) qui sont décrites avec ThI, ainsi que les 78 arguments contre le réalisme cités par les textes, ici catalogués et analysés en détail. Deuxièmement, la thèse examine la question de l’attribution de ThI à Gauthier de Mortagne, qui fut maître à Reims et à Laon dans les premières décennies du siècle et dont la vie et les œuvres font ici l’objet d’une présentation. L’attribution se fonde sur le témoignage du Metalogicon (II, 17) de Jean de Salisbury qu’il convient de comparer aux données du Policraticus. / This research project has two main objectives. First, its aim is to study a realist solution to the problem of universals from the early 12th century. This is called the indiuiduum-theory (=IndT; previous denominations include: indifference-theory, status-theory, second collectio-theory, etc.). IndT claims the universal to be a thing (res); in fact, it claims the universal to be the individual thing itself in one of its states (status). It makes use of some key notions of Abelard’s philosophy to produce a remarkably non-Abelardian sort of solution. The thesis subjects IndT to scrutiny by taking into consideration five main sources (which either describe IndT in order to criticise it, or in order to support it): Abelard’s Logica ‘Ingredientibus’, Logica ‘Nostrorum’, ‘De generibus et speciebus’ (transcribed directly from ms. Orléans, BM, 266, pp. 154b-163a), ‘Quoniam de generali’ and the Isagoge Commentary ‘P17’ (from ms. Paris, BnF, lat. 3237, ff. 123ra–124va, 125ra–130rb). Not only IndT, but the whole description of realism found in these texts is investigated. This includes an analysis of other realist views (different versions of material essence realism; the collectio-theory; a third realist solution in the Logica ‘Nostrorum’) together with a catalogue and detailed analysis of the 78 arguments presented against such realist views to be found in the five sources. A second aim of this work is to investigate whether IndT can be attributed to Walter of Mortagne, who was a master in Reims and Laon in the first decades of the 12th century. The attribution, which is based on John of Salisbury’s testimony in Metalogicon II, 17, is to be compared with John’s Policraticus.

The Glossa ordinaria on the Bible stands as one of the prime achievements of the period in western intellectual history known as the Renaissance of the twelfth century. In spite of the great number of still extant manuscripts very little is known about the circumstances around its composition. This state of affairs is partly explained by the lack of modern and critical editions of the books of the Glossa ordinaria. The present work is the first critical edition of the Glossa ordinaria on the Book of Lamentations, and consists of the forewords, or prothemata, and the first book (of five) of this text, which was compiled early in the twelfth century by the theologian and Ciceronian rhetorician Gilbert the Universal (†1134), schoolmaster at Auxerre and subsequently Bishop of London. The introduction includes a background sketch of the environment in which the Glossa ordinaria was conceived – the school of Laon – with a short biography of Gilbert the Universal, as well as a study of the sources to this particular part of the Gloss, chief among them the ninth-century commentary of Paschasius Radbertus. It is shown that Gilbert’s major improvement to his source, apart from drastically rewriting it, consists of the introduction of Ciceronian rhetorical loci to the verses of Lamentations. The introduction furthermore provides the reader with an analysis of the manuscript tradition of the early twelfth century and a selective analysis of the later manuscript tradition (some 86 manuscripts have so far been traced). One of the conclusions reached is that the Gloss on Lamentations exists in two textual recensions, the one original, the other a later redaction made once the Gloss had become a success and preserved in nearly all the later manuscripts. The manuscripts of the first recension, which is the one edited in the present work, may be organised into a stemma codicum consisting of two major families originating in a single archetype. It is possible to reconstruct this archetype on the basis of the five oldest manuscripts. An English translation of the edited text is included, as well as a ‘semi-critical’ edition of the text of the second recension. An important part of the present work consists of an effort to combine the sophisticated mise-en-page of the glossed manuscripts with the standards of presentation to be expected of a modern critical edition.