Joannes DIACONUS
51. DIACONUS et RHETOR (Διάκονος καὶ Ῥήτωρ), deacon of the great church (St. Sophia) at Constantinople, about the end of the ninth century.
Works
Λόγος εἰς τὸν βίον τοῦ ἐν ἁγίοις πατρὸς ἡμῶν Ἰωσὴφ τοῦ ὑμνογράφου, Vita S. Josephi Hymnographi
He wrote Λόγος εἰς τὸν βίον τοῦ ἐν ἁγίοις πατρὸς ἡμῶν Ἰωσὴφ τοῦ ὑμνογράφου, Vita S. Josephi Hymnographi.
Editions
published in the Acta Sanctorum, Aprilis (a. d. iii.), vol. i.; a Latin version being given in the body of the work, with a learned Commentarius Praevius at p. 266, &c., and the original in the Appendix, p. xxxiv.
Τίς ὁ δκυπὸς τῷ Θεῷ τῆς πρώτης τοῦ ἀνθρώπου πλάδεως, κ. τ. λ., Quid est Consilium Dei in prima Hominis Formatione, &c.
Allatius (De Psellis c. xxx) cites another work of this writer entitled Τίς ὁ δκυπὸς τῷ Θεῷ τῆς πρώτης τοῦ ἀνθρώπου πλάδεως, κ. τ. λ., Quid est Consilium Dei in prima Hominis Formatione, &c.
Several medieva writers named Joannes Diaconus
The designation Joannes Diaconus is common to several mediaeval writers; as Joannes Galenus or Pediasmus, Joannes Hypatus, Joannes deacon of Rome (who comes not within our limits as to time), and Joannes Diaconus, a contemporary and correspondent of George of Trebizond. [GEORGIUS, No. 48.]
Further Information
Acta Sanctorum, l.c.: Fabric. Bibl. Gr. vol. x. p. 264, vol. xi. p. 654; Cave, Hist. Litt. vol. ii. Dissertatio I. p. 11; Oudin, De Scriptoribus et Scriptis Ecclesiasticis, vol. ii. col. 335.
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.