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The Oxford Dictionary of Byzantium

Barry Baldwin


(Πρόκλος), bishop of Constantinople (from 434 or 437) and saint; died 12 July 446 or 447; feastday 20 Nov.

In 425 he failed to secure election to the see of Constantinople on the death of Patr. Attikos, whose secretary he was; he also failed to gain his designated see at Kyzikos in 426. In 428/9 at Constantinople he delivered an epochal sermon against Nestorios, in which he praised Mary as the Theotokos, developing the notion that she had conceived Christ aurally on hearing the words of the Holy Spirit (T.E. Gregory, GRBS 16 [1975] 321–23). After finally becoming bishop, he effected the transfer of the body of John Chrysostom to Constantinople in 438, one of several attempted acts of reconciliation of the theological factions. He is credited with introducting the Trisagion into the liturgy.

Nearly 30 of his sermons survive, in Greek, Armenian, Ethiopic, and Syriac versions; the authenticity of some is disputed. In the so-called Tome to the Armenians, Proklos defends the Chalcedonian doctrine of two natures of Christ in one hypostasis or person. Although Proklos does not name him, the Tome is directed against Theodore of Mopsuestia. Letter 4, which is preserved in a Latin fragment (PG 65:876f), contains the words “One of the Trinity was crucified according to the flesh,” a formula that was discussed in the 6th C. during the controversy over Theopaschitism.


ed. PG 65:679–888. Theotokos sermon—ed. Schwartz, ACO, Tome 1, vol. 1, pt.1:103–07. Syriac tr., ed. E. Lucchesi in Antiquité païenne et chrétienne, ed. E. Lucchesi, H.D. Saffrey (Geneva 1984) 187–98. Tome—ed. Schwartz, ACO, Tome 4, vol. 2:187–95.Find this resource:

    lit.Find this resource:

      F.J. Leroy, L'homilétique de Proclus de Constantinople (Vatican 1967).Find this resource:

        F.X. Bauer, Proklos von Konstantinopel (Munich 1919).Find this resource:

          Richard, Opera minora 2, no.52:303–31.Find this resource:

            Barry Baldwin