Археографічна діяльність Атанасія Великого

The article highlights the archival activity of Archimandrite of the General Administration of the The Order of Saint Basil the Great, historian and theologian Athanasius G. Welykyj (1918–1982) through the prism of the life and work of the Ukrainian intellectual elite outside the USSR/SSSR. The research methodology employs prosopography and comparative strategies, as well as archaeography techniques to construct the intellectual biography of the renowned archaeographer. The scientific novelty of the work lies in the actualization of lesser-known varieties of sources in the scientific orbit related to the history and culture of Ukraine and its Church, which Athanasius Welykyj organized and published in Rome. The presented narratives (documents of Roman Popes and bishops from the 17th to the 20th century, acts and letters of the Sacred Congregation for the Propagation of the Faith, letters of apostolic nuncios, epistolary of the Kiev Catholic metropolitans, documents of the Union of Brest and its creators from the 16th to 17th centuries, documents of the beatification and canonization processes of Josaphat Kuntsevych from 1623 to 1867, etc.) and conclusions complement the intellectual chronicle of the Ukrainian Church, Ukrainian emigration in the second half of the 20th century, especially the life of the Ukrainian intellectual elite in Italy and the Vatican.