Answer
The birth name of I. C. Vissarion, whose full name is Vissarion Alexeyevich Skvirsky, was Iancu Visarion. Born on January 14, 1961, in Krasnodar Krai, Russia, he later changed his name as he embarked on his spiritual journey and ultimately founded his religious movement known as the Church of the Last Testament, leading a community of followers in the Siberian taiga.