Cette thèse est une contribution à l'histoire institutionnelle de l'Eglise orthodoxe russe de 1917 à 1931. Elle s'attache aux conséquences pour l'Église russe de la Révolution de 1917, de la chute de la monarchie et de l'arrivée au pouvoir des Bolcheviks. L'importance du Concile Local de 1917-1918, qui a rétabli les tonnes canoniques et administratives de l'Église russe, est mise en lumière : le système synodal gouverné par un ober-procureur fut aboli et le patriarche Tikhon fut élu. Le Concile Local de 1917-1918 et le Patriarche Tikhon réagirent aux changements politiques dans le pays, en particulier après la Révolution d'Octobre entraînant des persécutions contre l'Église, l'arrestation du Patriarche Tikhon, et affectant la politique de l'Église russe après 1923. L'émigration ecclésiale, partie de Crimée, dans un premier temps vers la Turquie, fut à la source de l'organisation des tonnes administratives de l'Église russe à l'étranger en Serbie, notamment à travers le Concile de toute l'émigration ecclésiale de 1921 à Karlovci. L'émigration ecclésiale dut définir ses relations avec le Patriarcat de Moscou. Les hiérarques à l'étranger ne pensèrent d'abord à aucune rupture avec Moscou, mais la situation changea après le décès du Patriarche Tikhon en 1925. C'était une période de division à l'intérieur de l'Église russe à l'étranger mais aussi un temps où les relations normales avec Moscou devinrent impossibles. Le "Locum Tenens". Le Métropolite Pierre, était arrêté par les Bolcheviks et le Métropolite Serge, son remplaçant, était contraint de faire des concessions considérables en faveur du pouvoir soviétique. L'exigence du Métropolite Serge au clergé russe à l'étranger de donner un engagement de loyauté envers le pouvoir soviétique et sa Déclaration de 1927 provoquèrent des réactions négatives à l'étranger. Le Synode des évêques à l'étranger, présidé par le Métropolite Antoine, rompit ses relations avec Moscou en 1927 et le clergé du Métropolite Euloge intégra le Patriarcat de Constantinople en 1931. Les conséquences furent douloureuses pour 1e Patriarcat de Moscou car cette institution perdit toutes ses paroisses principales en Europe Occidentale. / This thesis is a contribution to the institutional history of the Russian Orthodox Church from 1917 to 1931. It emphasizes how the Russian Church was affected by the Revolution of 1917, the fall of monarchy, and the rise to power of the Bolsheviks. The importance of the 1917-1918 Local Council, which has restored the canonical and administrative forms of the Russian Church, is underlined: the synodal system governed by an ober-prokuror was abolished and Patriarch Tikhon was elected. The 1917-1918 Local Council and Patriarch Tikhon reacted to political changes in the country, particularly after the October Revolution, causing persecutions against the Church, the arrest of Patriarch Tikhon, and affecting the policy of the Russian Church after 1923. The ecclesial emigration that had left Russia from Crimea, first to Turkey, instigated the organization of administrative forms of the Russian Church Abroad in Serbia, through the 1921 Council of ail ecclesial emigration in Karlovci. The ecclesial emigration had to define its relationships with the Moscow Patriarchate, The hierarchs abroad did not consider any break with Moscow at first, but the situation changed after the death of Patriarch Tikhon in 1925. It was a time of division within the Russian Church Abroad but also a time when normal relations with Moscow became impossible. The Locum Tenens, Metropolitan Peter, had been arrested by the Bolsheviks and Metropolitan Sergius, who replaced him, was forced to make significant concessions to the Soviet power. Metropolitan Sergius's demand to the Russian clergy abroad to give a commitment of loyalty to the Soviet regime in 1927 and its Declaration in 1927 provoked negative reactions abroad. The Synod of Bishops Abroad chaired by Metropolitan Anthony broke with Moscow in 1927, and the clergy of Metropolitan Eulogius joined the Patriarchate of Constantinople in 1931. The consequences were painful for the Moscow Patriarchate since this institution has lost all major parishes in Western Europe.

This essay is mainly about the Church of the Goths and about the Russian Orthodox Church, and their conflict. The essay will be focusing about important persons in these two churches. This essay will be tracing back the roots of the Church of the Goths, since it is a church, that is unknown by most people in this world. My research will be making a distinction of the differences between the Church of the Goths and the Russian Orthodox Church. This essay will also be discussing the heritage of the Gothic people and the theories of the Goths.The methods in the essay, is academic sources, information from the Church of the Goths and from the Russian Orthodox Church. The results shows how the information was found, and now it is published for the first time about the Church of the Goths. This means the Church of the Goths has a stronger ground than first expected. The methods were comparing what the different sources says, and if it was possible to connect the Church of the Goths to the Metropolitanate of Gothia, and so on.