Theoktistos 20 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | E IX |
| Dates | 816 (taq) / 816 (tpq) |
| Locations | Chalke (Princes' Islands); Chalke (Princes' Islands) (exileplace); Chalke (Princes' Islands) (residence); Stoudios (Monastery of, Constantinople); Stoudios (Monastery of, Constantinople) (residence) |
| Occupation | Monk |
| Textual Sources | Theodorus Studita, Catechesis Parva, ed. E. Auvray (Paris, 1891) (homiletics); Theodorus Studita, Epistulae, ed. G. Fatouros, CFHB 31.1-2 (Berlin/New York, 1992) (letters) |
Theoktistos 20 was a Stoudite monk; he was the addressee of a letter from Theodoros 15 (Theodore the Stoudite), written in summer 816 when he was in exile because of his support for the veneration of icons: Theod. Stud., Ep. 123 (addressed Θεοκτίστῳ τέκνῳ), cf. Theod. Stud., Ep. 96 (mentioned as one who suffered persecution and exile). He and other monks associated with him (see Hypatios 7 and Silouanos 2) received great support during the persecution from Anna 12: Theod. Stud., Ep. 96, pp. 216-217. He is mentioned in one of the sermons of Theodoros 15; styled κύριος, he was elderly (καλόγηρος); he had been banished to the island of Chalke, where his priest (Anonymus 620) was flogged after it was reported that he had failed to mention the emperor during worship: Theod. Stud., Catech. Parva 84 (p. 288 Auvray).
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