Defence of the Church before the Golden Horde
According to the tradition recorded in the synaxarion, Theognostus refused to collect tribute from the churches on behalf of the Golden Horde. Sources relate that he was subjected to torture by the Tatars for this resistance, but remained steadfast.
The khan is said eventually to have confirmed the existing privileges and fiscal immunities of the Russian Church, continuing the pattern of charters (yarlyks) by which the Mongol rulers exempted ecclesiastical property from taxation.