 When the Fourth Œcumenical Synod (451) condemned the errors of Eutyches and Dioscorus, it was greatly due to the authority of Euthymius that most of the Eastern recluses accepted its decrees.The Empress Eudoxia was converted to Orthodoxy through his efforts.The Church celebrates his feast on 20 January (2 February for those Orthodox Christians who still go by the Julian calendar), the day of his death.