Feodosy Kosoy, "Feodosy the Squint-Eyed" (Феодосий Косой) (

fl. ''Floruit'' ( ; usually abbreviated fl. or occasionally flor.; from Latin for 'flourished') denotes a date or period during which a person was known to have been alive or active. In English, the unabbreviated word may also be used as a noun indic ...

1550s) was a Russian serf-monk in the time of

Ivan the Terrible Ivan IV Vasilyevich (; – ), commonly known as Ivan the Terrible,; ; monastic name: Jonah. was Grand Prince of Moscow, Grand Prince of Moscow and all Russia from 1533 to 1547, and the first Tsar of all Russia, Tsar and Grand Prince of all R ...

. 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.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 ..."

References

{{reflist Russian Christian monks Russian Christian pacifists Former Russian Orthodox Christians Converts to Protestantism from Eastern Orthodoxy 16th-century Russian people 16th-century farmers