"A bright ray of Eastern Hierarchy": Ecumenical Patriarch Constantius I of Constantinople
Based on materials from the personal fund of A.N. Muravyov (Research Department of Manuscripts of the Russian State Library 188), the article analyzes the activities of the Archbishop of Mount Sinai and Ecumenical Patriarch Constantius I of Constantinople (1768-1859) and his role in the interchurch relations of the Eastern Patriarchates with the Most Holy Governing Synod. Particular attention is paid to the participation of Constantius I of Constantinople in discussions with representatives of Russia, France and Great Britain on the eve of the Crimean War in the midst of a dispute over the holy places of Palestine.