Eutyches was an archimandrite and heretic who lived in the fifth century at a monastery near Constantinople. A staunch foe of Nestorianism he took an extreme view in the opposite direction, to a form of monophysitism called Eutychianism, during the Christological controversies of the fifth century. His nonnegotiable position ended in his being anathematize by both the Chalcedonian and non-Chalcedonian sides of the controversy.