Kyrillos 4 | Prosopography of the Byzantine Empire |
| Floruit | E IX |
| PmbZ No. | 4205 |
| Locations | Hagios Christophoros (Monastery of, Bithynia); Sakkoudion (Monastery of, Bithynia); Stoudios (Monastery of, Constantinople) (residence) |
| Occupation | Monk |
| Textual Sources | Theodorus Studita, Catechesis Magna, ed. J. Cozza-Luzi, Nova Patrum Bibliotheca 9.2 (Rome, 1888), 10.1 (Rome, 1905); ed. A. Papadopoulos-Kerameus, Megale Katechesis (St Petersburg, 1904) (homiletics) |
Kyrillos 4 was a Stoudite monk who delivered a message from Theodoros 15 (Theodore the Stoudite) to the monks of the monastery of Sakkoudion and the monastery of Hagios Christophoros in Bithynia shortly after the release of Theodoros 15 from detention: Theod. Stud., Catech. Magna II 57 (p. 408 Papadopoulos-Kerameus). The date was either c. 811 or c. 821, probably the former.
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