Feodosy Kosoy, "Feodosy the Squint-Eyed" (Феодосий Косой) (
fl.
''Floruit'' (; abbreviated fl. or occasionally flor.; from Latin for "they 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 indicatin ...
1550s) was a Russian serf-monk in the time of
Ivan the Terrible
Ivan IV Vasilyevich (russian: Ива́н Васи́льевич; 25 August 1530 – ), commonly known in English as Ivan the Terrible, was the grand prince of Moscow from 1533 to 1547 and the first Tsar of all Russia from 1547 to 1584.
Ivan ...
. He preached full equality, rejecting church hierarchy, the Trinity, the sacraments, icons, and churches. His preaching was condemned along with that
Matvei Bashkin Matvei Semyonovich Bashkin (russian: Матвей Семёнович Башкин) was a Russian boyar scion in the time of Ivan the Terrible charged with heresy for denial of the doctrine of the Trinity along with abbot Artemy the former abbot of ...
and the
Abbot Artemy Abbot Artemy (игумен Троицкого монастыря Артемий; Артемий Троицкий) was a Russian abbot condemned for heresy in the time of Ivan the Terrible along with Matvei Bashkin Matvei Semyonovich Bashkin (russian ...
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
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Russian Christian monks
Russian Christian pacifists
Former Russian Orthodox Christians
Converts to Protestantism from Eastern Orthodoxy
Tsardom of Russia people