EUTYMIUS I, patriarch of CONSTANTINOPLE. - B. c. 834 at Seleucia (Isauria), d. in exile on 5 Aug. 917. A monk, he was confessor to the Emperor Leo VI, with whose help he founded the monastery of Psammathia in Constantinople; he always maintained a dignified bearing even in the presence of his sovereign. As patriarch of Constantinople (907–12), he was in harmony with the Roman See on the question of Leo VI’s fourth marriage; but when Leo died, he was deposed by Leo’s successor, his brother Alexander, and was also opposed by Nicholas the Mystic during Nicholas’s second patriarchate (912–25). At this point began the Euthymian schism, which lasted until the end of the 10th century. E. is the author of four Marian homilies. His life was well described by one of his disciples. He is venerated by the Byzantine Church as a saint.
EUTIMIO I, PATRIARCA DI COSTANTINOPOLI
BIBL.: C. De Boor, Vita Euthymii, Berlin 1885; M. Juge, S. Euthymia, patriarca de Costantinopole: PO 16, 403–514; V. Grumel, Les regestes des actes du patriarcat de Costantinople, I, 2, Paris 1935, nn. 625–29, pp. 146–47. Giorgio Hofmann.