Feodosy Kosoy, "Feodosy the Squint-Eyed" (Феодосий Косой) (fl. 1550s) was a Russian serf-monk in the time of Ivan the Terrible. He preached full equality, rejecting church hierarchy, the Trinity, the sacraments, icons, and churches. His preaching was condemned along with that Matvei Bashkin and the Abbot Artemy in 1553. He fled to the safety of Lithuania and the community of Polish Brethren.
References
- Victor Terras, A History of Russian Literature (Yale UP, 1991), p. 79 fn. 45.
- Ivan the Terrible as a religious type: A study of the background Alexander Dvorkin - 1992 "Beginning of a series of Church councils (1553–55) which led to the condemnation as heretics of Matvei Bashkin, Feodosy Kosoy, and the monk Artemy."
- Anglican theological review: Volume 4 - 1922 "Ivan the Terrible showed great zeal in suppressing these reformers and finally the last of the leaders, Feodosy Kosoy (the Squint-eyed), fled to Poland and met there the preachers of Western Unitarianism who had reached the same ..."