15th-century Eastern Orthodoxy

Ecumenical Council of the Catholic Church (1431–1445)

thumb|316x316px|right|Strigolniki being thrown into the Volkhov (river)|Volkhov River from a bridge in 1375, miniature from [[Illustrated Chronicle of Ivan the Terrible.]]

15th-16th–century religious sect in Russia

religious organization

local synod of the Eastern Orthodox Church, first synod to condemn the Council of Florence