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L’Amérique centrale, théâtre des dernières batailles rangées de la guerre froide, est aujourd’hui la région la plus violente au monde, selon les Nations unies. Notre étude s’intéresse à la forme de guerre irrégulière livrée par l’État guatémaltèque contre sa propre population pendant la deuxième moitié du vingtième siècle. À la lumière de rares témoignages d’exécutants et d’archives militaires et policières, nous examinons un mécanisme clandestin de répression dont les trois principales composantes – les enlèvements, la torture et les exécutions sommaires – pouvaient s’abattre sur toute personne soupçonnée, à tort ou à raison, de conspirer contre un statu quo d’exclusion. Au moment de leur articulation, ces moyens répressifs ont constitué un dispositif qui, à partir de 1966, s’est avéré d’une redoutable efficacité. Arme de prédilection des adeptes de la guerre antisubversive pendant plus de vingt ans, le dispositif permettait, telle une chaîne de production, l’accumulation des renseignements jugés indispensables à cette forme de guerre, ainsi que les cadavres dont l’absence éternelle ou la présence outrageuse sur la place publique servaient d’avertissement funeste à l’ensemble du corps social. Où chercher les origines d’un tel dispositif? À partir des ouvrages de référence cités dans le manuel de guerre contre-subversive de l’armée guatémaltèque, la réponse à cette question nous fera découvrir des parachutistes français pour qui la défaite militaire en Indochine et en Algérie pendant les années 1950 n’était pas une option et pour qui la victoire justifiait absolument tous les moyens. Le penchant de ces pionniers de la guerre hors-norme pour les cours magistraux, les entrevues et les articles, nous a permis d’étudier les méthodes qu’ils préconisaient et de repérer leurs traces au Guatemala. Alors que la guerre qui avait servi de prétexte au maintien du dispositif est terminée, sa très réputée efficacité assure encore aujourd’hui sa pérennité auprès de ceux qui peuvent s’offrir le service. En ce sens, la contre-insurrection se poursuit, et ce, malgré l’absence depuis une quinzaine d’années d’un conflit armé. Cette thèse aborde l’histoire de la guerre irrégulière et son déroulement au Guatemala. Les archives et les témoignages à notre disposition contredisent le déni des crimes commis dans les villes et les campagnes guatémaltèques, dont le génocide de 1982. Finalement, certains signes avant-coureurs indiquent que la violence et l’impunité actuelles au pays pourraient mener à la répétition de tels crimes à l’avenir.

Cette thèse lève en partie le voile sur l’histoire des sports féminins au Québec de 1919 à 1961, soit de l’âge d’or des sports féminins au Canada jusqu’à l’adoption de la Loi sur la condition physique et le sport amateur par le gouvernement fédéral. Elle montre comment les rapports de genre ont été re/produits dans les sports féminins en étudiant les discours et les pratiques, tout en portant une attention particulière à l’influence qu’exercent l’appartenance de classe, l’ethnicité et la religion sur les sports féminins. L’analyse se penche d’abord sur les discours des médecins, des professeurs d’éducation physique et des clercs de l’Église catholique pour étudier les prescriptions qu’ils ont formulées à l’égard de la participation sportive des femmes. Les idées de deux Montréalaises, Myrtle Cook et Cécile Grenier, sont ensuite examinées pour montrer comment elles contestent les discours dominants. Enfin, les pratiques sportives des femmes dans deux centres sportifs montréalais, soit la Palestre nationale et le Young Women’s Christian Association, ont été étudiées de manière détaillée afin de mettre en lumière les différences, mais aussi certaines similitudes, entre l’organisation des sports féminins dans les communautés francophones et anglophones de la ville. Cette thèse met en évidence les tensions qui découlent des rapports de genre, de classe, d’ethnicité et de l’appartenance religieuse, et qui sont présentes à la fois dans les discours et les pratiques. Comme ailleurs en Amérique du Nord et même ailleurs en Occident, les discours dominants au Québec ne sont pas univoques, alors que des vues divergentes les contestent et que les pratiques sont plurielles. Tout en s’inscrivant dans le mouvement plus large d’accès des femmes aux sports en Occident, les discours et les pratiques observables à Montréal s’en distinguent, notamment par la forte influence de l’Église catholique et par les tensions ethniques. Le Québec est donc un cas d’espèce tout indiqué pour mettre en lumière la complexité de la re/production des rapports de genre à travers l’analyse des sports féminins, l’étude de ce champ constituant en même temps une avenue de recherche fort stimulante pour mieux saisir l’entrée de la province dans la modernité.

Comment le tourisme s’est-il développé dans un territoire en pleine expansion coloniale ? Comment tourisme et colonisation se sont-ils conjugués ? Quel lien peut-on établir entre ces deux dynamiques ? C’est ce à quoi cette thèse tente de répondre en démontrant l’instrumentalisation du tourisme par les politiques coloniales. Elle se divise en sept chapitres abordant successivement le transfert des pratiques touristiques de l’Europe à l’Indochine, leurs implantations, leurs intégrations aux politiques de mise en valeur des années 1920, les conséquences spatiales de leurs implantations (construction de voies de communication et d’hébergements hôteliers) et la communication instaurée par l’Etat pour promouvoir l’Indochine comme une destination touristique auprès des Indochinois comme des touristes étrangers.

On 22 June 1845, a curious religious procession took place in the streets of Montreal. A “huge crowd” gathered to accompany through the city the body of a man exhumed from the Roman catacombs. His bones had been shipped to Montreal and placed in a wax figure representing a Roman soldier. Presumed to have died for his faith, this martyr was carried through the streets at arm’s length amid incense and hymns. Surprisingly, this procession was not an isolated one. From 1830 to 1930, the remains of dozens of presumed Christian martyrs extracted from the Roman catacombs were sent to Canada. In Halifax, Rimouski, Joliette, Toronto, and Windsor, they attracted the faithful and the curious. Adopted as powerful intercessors, these foreign saints would shape the beliefs, representations, and identity of generations of Catholics. Around their relics, a whole devotional universe would develop and maintain various and complex relations with society. These relics provide us with a unique window into nineteenth-century Canadian society. This thesis makes a significant contribution to historiography by exploring for the first time the topic of ultramontane devotions in Canada. It studies the deployment of the cult of Roman martyrs and their relics in the Canadian Church and reconstitutes the development of this devotion from a cultural history perspective. Using archival documents found on both sides of the Atlantic, this thesis examines how Canadians discovered, sought, and adopted this foreign devotion. In reality, this infatuation for Roman relics is primarily a transnational phenomenon that is part of the profound changes that the Catholic Church experienced in the nineteenth century, driven in particular by the Ultramontane movement. Therefore, it seeks to situate the presence of relics from the catacombs in Canada in its global context while considering its Canadian particularities. It rests on a considerable number of novel sources drawn from more than thirty archival centers. With the help of these documents, it examines the different facets that this devotion had, whether in cities or the countryside, among English-speaking or French-speaking communities or in predominantly Catholic or Protestant environments. The first chapter reveals the fascination with Christian Rome among nineteenth-century Canadians and the importance that the catacombs and their martyrs had in the minds of the Catholic faithful. The second chapter identifies the many networks uniting the Canadian Church with Rome, and more broadly with Europe, that allowed the acquisition and shipping of relics to Canada. It replaces this devotion in a larger framework by linking it to other manifestations of this expression of piety elsewhere in the world. It pays particular attention to the exchange of goods between the Italian peninsula and North America by studying the commercial routes that allowed the circulation of relics. The remaining three chapters are devoted to the presentation, the reception, and the adoption of catacomb saints in Canada. They examine the art of molding wax bodies containing relics and the symbolism of these recumbent-reliquaries, before describing the religious ceremony organized to mark the arrival of a new martyr. Finally, this thesis explores the faithful’s various expressions of piety: patronages, prayers, indulgences, and claims of miracles. It examines the attachment but also the opposition and the tensions provoked by Roman relics within society. This research demonstrates the influence that foreign religious devotions held in the spiritual lives of Canadians and the many connections uniting Canadian society with Europe. It also testifies to significant changes in the devotional universe of the nineteenth century. But above all, it highlights the profound transformations of both culture and mentalities and particularly of beliefs, emotions, and the idea of death. This study contributes to a better understanding of the religious past of several generations of Canadians by studying a devotion that has now completely been forgotten.

Cette thèse de doctorat est une biographie politique de Paul Levi, militant marxiste qui a fait carrière en Allemagne durant la période de l’entre-deux-guerres. Dès 1914, Levi incarne un courant radical à l’intérieur du Parti social-démocrate d’Allemagne (SPD). Il dénonce, entre autres, aux côtés de Rosa Luxemburg l’appui du parti à l’effort militaire national. Levi s’inspire également de Lénine qu’il rencontre pour la première fois en Suisse en 1916-1917. Lorsqu’il prend les commandes du Parti communiste d’Allemagne (KPD) en 1919, Levi dirige celui-ci d’une main de fer, selon le concept du « centralisme démocratique ». Il fait également tout en son pouvoir pour faire éclater la révolution ouvrière en Allemagne afin d’installer une dictature du prolétariat qui exclurait toutes les classes non ouvrières du pouvoir. En ce sens, Levi imagine un État socialiste semblable à celui fondé par Lénine en Russie en 1917. Contrairement à l’historiographie traditionnelle, notre thèse montre conséquemment que Levi n’était guère un « socialiste démocrate ». Il était plutôt un militant marxiste qui, par son radicalisme, a contribué à diviser le mouvement ouvrier allemand ce qui, en revanche, a fragilisé la république de Weimar. Cette thèse fait également ressortir le caractère résolument rebelle de Paul Levi. Partout où il passe, Levi dénonce les politiques bourgeoises des partis non-ouvriers, mais aussi celles de la majorité des organisations dont il fait partie, c’est-à-dire les partis ouvriers de la république de Weimar et le Reichstag. Son tempérament impulsif fait de lui un homme politique isolé qui, d’ailleurs, se fait de nombreux ennemis. En 1921, à titre d’exemple, il se brouille avec d’importants bolcheviques, ce qui met fin à sa carrière au sein du KPD. Les communistes voient désormais en lui un ennemi de la classe ouvrière et mènent contre lui de nombreuses campagnes diffamatoires. Levi, de son côté, dénonce ouvertement la terreur stalinienne qui, selon lui, est en train de contaminer le mouvement communiste européen. Notre travail montre également que Levi, cette fois en tant qu’avocat juif, lutte corps et âme contre les nazis. En 1926, dans le cadre d’une commission d’enquête publique du Reichstag chargée de faire la lumière sur des meurtres politiques commis en Bavière, il tente par tous les moyens d’inculper certains criminels nazis. Levi est conséquemment la cible de la presse antisémite allemande. Il refuse toutefois de céder à l’intimidation et choisit plutôt de poursuivre en justice quelques-uns des plus importants membres du Parti nazi, dont Alfred Rosenberg et Hitler lui-même, en plus de forcer de nombreux autres nazis à comparaître devant la commission d’enquête du Reichstag. Bref, si ce travail se veut critique envers la pensée révolutionnaire de Levi, il souligne aussi l’intégrité politique de cet homme dont les convictions sont demeurées inébranlables face aux dérives criminelles des extrêmes idéologiques de son époque.

From 1422 the Englishman John of Lancaster (1389-1435), duke of Bedford, was regent of his young nephew’s French kingdom. Because the treaty of Troyes (1420) provided for a long-lasting English presence in France, the regent had to put in place a social domination structure based on consent rather than coercion. In this context, the duke of Bedford devised a cultural and language policy inspired by the attitudes of the most prominent members of the Valois family. It allowed him to bolster support for his regime and legitimize his power. This policy is the main object of our research. We first propose to examine each element of Bedford’s cultural policy. His magnificent households, precious manuscripts and generous patronage were outward symbols of the might and stability of English rule in France. These possessions also allowed their owner to present himself as a legitimate member of continental courtly society. As such, they were a mean to strengthen the bond with his most important ally, his brother-in-law Philip, duke of Burgundy. At the same time the regent depicted himself, and by extension Henry VI, as the legitimate ruler of France by actively imitating past French kings. Some of his cultural enterprises can be conceived as propaganda. However under careful scrutiny these representations of power appear to have been intended not only for the conquered, but also for the conquerors themselves. We devote a second chapter to the exercise of power through writing. We analyze the duke’s production of written documents, both sides of the Channel, in light of its compliance to or defiance of French diplomatic tradition. In itself, the adoption of local practices and language was both respectful of the spirit of the treaty of Troyes and a convenient way to conceal the dynastic rift between Valois and Lancaster. On the other hand, the continued use of typical English documents in Bedford’s organization of the military reveals the limited extent of his acculturation. We also consider the important role of the French secretaries in the coordination between the two kingdoms, which in theory were supposed to be kept separate. Some of them were so involved in English affairs that they moved to England to serve Henry VI. In the end however the English bureaucracy remained mostly unaffected by extraneous innovations. Nonetheless, the very significant linguistic shift it underwent was contemporary, and linked, to the demise of Lancastrian France. The last chapter examines the contribution of other important figures of the anglo-burgundian cultural environment. The continental activity of magnates like Richard Beauchamp and soldiers like John Talbot exemplifies the relative vitality of courtly life in Lancastrian France and highlights the adoption of some elements of French culture by the English there. The subsequent patronage, circulation of texts and artists and, ultimately, the internalization of the Lancastrian French narrative, led to the transformation of English culture. This cultural appropriation contributed to the perpetuation of French language and literature in fifteenth-century England. Paradoxically, it also reinforced a properly English identity.

In 1969, in a well-established European Economic Community (EEC) under the neo-Gaullist presidency of Georges Pompidou, Germany stood as a model for France, looking for an effective industrial policy and a recovery of its rank on the international scene. Since the mid 1960s the international monetary system had been weakened by the growing US debt. France wanted to be the leader of the economic and monetary union (EMU). This political decision was a means to improve its economy confronted with the instability of the international monetary system. As pointed out by Jacques Rueff, « L’Europe se fera par la monnaie ou ne se fera pas. » During this period, from the relaunch of the EMU (December 1969) to the Maastricht Treaty (February 1992), French economic action was based on a strong political will defined to reinforce the relationships with the Federal German Republic, and then the reunified Germany. The Franco-German monetary relationships aimed to promote a strong and independent Europe and to restore an exchange rate stability. The “golden standard” stability myth was viewed and understood differently in France and Germany. If recent historical studies have been partially devoted to the consequences of European monetary policies (essentially in France) on economic and monetary integration in the EEC, they focused on the 1974-1981 or 1981-1986 periods. The creation of the EMU was a dynamic process running from December 1969 to February 1992. Franco-German monetary relationships included two levels of decision-making. First, on the political level, there was the presidency, the chancellery, the European Commission and the ministers. Second, its counterpart, economic power. The latter requires analysis of the role played by central banks in the definition and application of monetary policies. This dichotomy illustrates the progressive transition between the political level and the economic level during the 1980s. The decline of politics and the primacy of economics were analyzed differently in France and Germany. Political and economic objectives and expectations were contrasted and divergent. This study demonstrates that the EMU dynamic was an economic process where politics gave way to economics. Monetary relations were asymmetric. The real interlocutor of French political authorities was German economic power, represented by the Bundesbank. The Franco-German tandem was a political myth broken by world economy liberalization. For Germany, the EMU was a device to define a European Germany in a federal Europe. In France, it represented an illusory means to restore French primacy for conservative and liberal governments and a way of compensating a failing ideology for socialist governments. The EMU provided monetary stability, but the dream of a powerful and independent Europe vanished with the Maastricht treaty. Even as it rejected the idea of European political union defended by the German diplomacy, France paradoxically laid the foundations of a German Europe.

This thesis develops our knowledge of the history of children with physical disabilities in Quebec by analyzing the representations and services offered to this clientele between 1920 and 1990. Camped in the current critical studies on disability, it aims to integrate disability at the heart of the demonstration by postulating the social construction of this category of analysis. Addressing a largely unexplored theme in historiography, it enriches the history of childhood in Quebec, as well as that of education, assistance and health. It is based in part on the model developed by Marie-Claire Cagnolo around the “logics” that have governed the treatment of people with disabilities. This study also relies on a variety of sources, from philanthropic association archives to official documents and government reports. Some silences in history have also been partially filled by interviews with witnesses. The main hypothesis underlying this thesis is that the place of children with disabilities in the province is determined by a double tension, on one hand between the antagonistic logic of exclusion and integration, and on the other hand between medical sphere and the socio-educational sphere that determine the organization and prioritization of the services offered to this clientele. The demonstration is structured into six thematic chapters: after a methodological description, chapter two looks at the main actors (philanthropists and governments) with this clientele, chapter three addresses the discourses on young people with disabilities, while the subsequent chapters look at paramedical, educational and finally recreational services for them. The first services intended specifically for children with physical disabilities in Quebec have been implemented at the turn of the 1920s by women of the bourgeoisie who justified this incursion into the public sphere in the name of maternalism. These philanthropists participate in the movement to defend the rights of “crippled” children on the international scene during the inter-war period. The idea of a hegemonic medical hold in the care of young disabled people, often defended by researchers, is relativized by the predominant role of volunteers and their socio-political engagement, at least until the 1940s. Three figures emerge from the discursive analysis: the angelic victim, the rehabilitated child-citizen and the monster. The vulnerable “cripple” is part of a paternalistic approach of assistance, which makes the disabled person an object of compassion to arouse the charity of the public. The figure of the useful citizen calls for a logic of reparation and rehabilitation, which provides compensation for the members of the society that are not growing with the same chances as the others. As for the monster, it symbolizes the reaction of communities driven by fear and rejection responding to a logic of elimination or exclusion. These various logics are also evident in the care of children with disabilities in Quebec, both in terms of the organization of care and in the development of educational or recreational services. The logic of assistance, based on a combination of public and private support and the need to protect children, emerged in the response to polio epidemics from the 1930s to the 1960s, as well as in the operation of special schools or adapted camps. The tragedy of thalidomide marks a turning point in the early 1960s as the federal government’s blatant responsibility leads to the organization and funding of a rehabilitation program, according to a logic of reparation. However, this compensation is addressed to a well-defined category of citizens who have been wronged by state negligence and does not include all children with disabilities. Only a paradigm shift, transforming disability into a collective problem, and no longer individual, will allow the transition from a logic of reparation to that of participation and inclusion. This transition took place between 1970 and 1990, when the government of Quebec guaranteed the services offered, according to a societal logic based on social inclusion and the recognition of young people with disabilities as subjects of rights. These gains remain however fragile, at risk of falling into mechanisms of exclusion. Far from constituting a linear path leading from stigmatization to full recognition of rights in an inexorable progression, the past of children with disabilities is marked by ups and downs, sudden advances followed by regressions. The pejorative representations of children with disabilities, ranging from degenerate to monster, coexist with more positive images such as the future citizen or the subject of rights, just as the different logics of integration and exclusion coexist throughout history, a duality that still continues today.

While strategies had been developed by the public authorities that had been operating in Dakar since the 1920s to contain the spread of tuberculosis, a social disease then identified as an obstacle to France's socio-political and economic projects in Dakar and West Africa, in 2019, some 40 years after Senegal's decolonization, the disease continued to be a concern for the city's health authorities. This raises several questions: Why, despite the manufacture of an anti-tuberculosis vaccine since the 1920s and the discovery of specific drugs in the 1940s and 1950s, tuberculosis continues to defy the plans implemented in Dakar to contain its spread? What has been done to halt its spread? Did the fight against tuberculosis in Dakar also involve action on the factors that contributed to the spread of the disease? Was it the implementation of TB control measures that was failing? The hypothesis underlying this thesis is that the fight against tuberculosis was not a priority for Dakar health authorities, but also that the inadequacy of the various preventive and curative measures against this disease explains the limits of the action taken so far and, consequently, the persistence of tuberculosis in this city. Through an evaluation of the organization and execution of the various measures taken since 1924, this thesis attempts to shed light on the factors explaining the persistence of tuberculosis in Dakar until 1969 and to identify continuities, and not only breaks, between the colonial and national periods in order to better understand the current place of the infectious disease in the country. It also envisages seeing with reference to what knowledge and practices were maked choices concerning measures to combat tuberculosis and seeks to study the modalities of implementation of the various measures adopted to halt the development of this disease in order to grasp distances between intentions and actions taken. In order to assess the impact of the various plans to combat tuberculosis in Dakar over the chosen period, attention is also paid to their reception and the attitudes that they have aroused among the population of Dakar.

Le 18 juin 1815, Napoléon fut renversé à Waterloo, mais son art de la guerre survécut. Il s'agit de cet art militaire qu'il avait révolutionné et dont d'autres firent de nombreuses applications longtemps après sa disparition. S'inspirant des méthodes des théoriciens du XVIIIe siècle, il avait privilégié la stratégie d'anéantissement dans la conduite d'opérations militaires et se classait ainsi dans la catégorie des stratèges recherchant avant tout la bataille décisive en vue de détruire les forces ennemies. À la lumière des tactiques et stratégies que Bonaparte utilisa dans ses plus célèbres campagnes, cette thèse tentera de dégager les méthodes napoléoniennes qui furent le plus souvent utilisées au cours de la seconde moitié du XIXe siècle. Les conflits étudiés durant cette période seront la guerre de Crimée (1853-1856), la campagne d'Italie (1859), la guerre de Sécession américaine (1861-1865), la guerre austro-prussienne (1866) et la guerre franco-prussienne (1870-1871). Cette recherche tiendra compte non seulement de l'influence des progrès de l'armement et des moyens de transport et de communication sur l'art de la guerre en général, mais aussi du contexte économique, financier, politique et militaire des États bélligérants de cette époque. Parmi les nombreux exégètes de Bonaparte du XIXe siècle, deux théoriciens militaires en particulier, Clausewitz et Jomini, se distinguèrent dans l'interprétation savante de la guerre napoléonienne. Tout en analysant l'impact des méthodes de l'Empereur dans les guerres selectionnées, nous allons déterminer dans quelle mesure la vision jominienne des campagnes de Bonaparte divergeait de celle de Clausewitz en ce qui concerne les conflits traités. Nous aborderons ensuite l'influence napoléonienne sur l'administration, l'organisation et les marches des armées impliquées dans les guerres en question et nous porterons une attention particulière à l'impact du système militaire de Bonaparte sur certains aspects du déroulement même des combats. Nous terminerons cette étude par un bref aperçu sur les enseignements que les militaires au XIXe siècle purent dégager des campagnes napoléoniennes pour la conduite des guerres de l'avenir.

This doctoral thesis in history focuses on the religious relationship between the ancient Romans and the freshwater which they lived nearby as inhabitants of a river town. This study starts from the observation that Romans are known for their technical knowledge of water and their aqueducts. However, religious beliefs associated with water have yet to be fully examined and remain scattered throughout historiography. To fill this gap, this study presents a synthesis of the aquatic cultures of the Romans from literary, archaeological, and epigraphic sources, dating mostly from the Late Republic and the High Empire (1st century BC. 3rd century)

Les cultes isiaques se répandent autour du bassin méditerranéen entre le IVe s. av. et la fin du IVe s. apr. J.-C., arrivant à Rome au Ier siècle av. notre ère et y disparaissant conjointement aux cultes païens traditionnels avec ou peu après le coup porté par Théodose. Leur diffusion romaine s’étale donc sur une grande partie de l’histoire de l’Empire d’Occident, et ils vont ainsi se retrouver face à l’homme désormais considéré comme primus inter pares, grâce à l’accumulation de ses pouvoirs. L’empereur est pontifex maximus, c’est-à-dire maitre des cultes publics et du droit religieux, et il est ainsi l’agent du pouvoir qui a le potentiel religieux et législatif pour avoir un discours varié sur les autres traditions religieuses. Il semble donc inévitable que la sphère cultuelle isiaque rencontre et interagisse avec la sphère religieuse traditionnelle romaine, et que certains empereurs interfèrent, par renforcement ou au contraire par opposition, avec les cultes isiaques arrivés peu de temps avant l’avènement du pouvoir impérial. Cette thèse se propose non seulement d’étudier la dialectique entre institué romain (la force d’inertie) et instituant isiaque (la force de changements) dans la direction d’une potentielle altérité incluse (soit le dialogue évolutif du Nous par rapport à l’Autre), mais notamment par les liens publics romains et évolutifs entre l’empereur et les divinités isiaques. Nous effectuons cette recherche grâce à quatre types de sources antiques : la littérature pour le point de vue de l’élite littéraire gréco-romaine ; les inscriptions isiaques pour une définition surtout populaire de l’identité évolutive de l’instituant isiaque ; les monnaies et les oeuvres monumentales pour le point de vue public (et parfois plus personnel) impérial. Nous concentrons notre étude à partir de la dynastie sévérienne, qui laisse supposer que les cultes romano-orientaux profitent de la nouvelle configuration impériale avec des empereurs originaires d’Afrique et d’Orient, dans un phénomène d’« impérialisation » isiaque intensifié par un engagement tant impérial que populaire. En outre, nous nuancerons les conséquences sur la diffusion isiaque des troubles qui surviennent dans la deuxième moitié du IIIe siècle. Enfin, le IVe siècle, avec la christianisation de l’Empire et donc un christianisme devenant institué, ouvre sur une analyse des débats entre les défenseurs actifs du paganisme et les auteurs chrétiens, et de là, vers des interrogations sur l’intervention de la sphère isiaque dans ce face-à-face.

Between 1378 and 1417, the Catholic Church was divided between two, and then three contending popes. While Urban VI and his successors settled in Rome, Clement VII and his successor, Benedict XIII, returned to Avignon. This dissertation documents and analyses the multiple experiences known in Normandy in reaction to the Great Western Schism. Norman commitments to resolve this division were plural and they were expressed in numerous manners. Relying on Vatican archives, University of Paris and local archives, this study demonstrates the different reactions that coexisted in Normandy in response to the Great Western Schism. Although the Norman nobility was generally favourable to the Avignon popes, officially recognized by the King of France, important waves of resistance to that papacy were also expressed amongst Norman clergymen, prelates, as well as university students and professors. This resistance led some to choose exile, in order to recognize the Roman popes. Those Norman exilees, although they formed a modest community, had considerable influence in the Roman obedience, and they have been the object of very little scholarly attention. Amongst the vast majority of those who remained in the obedience of Clement VII, many Norman intellectuals were known for being very critical, even being enemies of the Avignon popes. The relationships that exiled Normans maintained with their colleagues who remained in Clément VII’s obedience played a very important role in the dialogue between obediences that led to the council of Pisa in 1409. This dissertation highlights the multiplicity of Norman attitudes in response to the Great Western Schism, it deepens our knowledge of the various Norman groups touched by the division and it improves our understanding of the different debates that surrounded the crisis. It also allows to further the reflection on the questions of how the schism affected the notion of obedience, and of the Norman networks at work during that period.