Eutychianos 1 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | L VIII |
| Dates | 787 (taq) / 787 (tpq) |
| PmbZ No. | 1864 |
| Variant Names | Eutychianus |
| Religion | Christian; Iconophile |
| Locations | Kallistratos (Monastery of, Constantinople) (residence); Kallistratos (Monastery of, Constantinople); Nikaia |
| Occupation | Monk |
| Textual Sources | Nikaia, Second Council of (Seventh Ecumenical Council, a. 787) (Mansi XII-XIII) (conciliar) |
Eutychianos 1 was a monk of the monastery of Kallistratos; in 787 he attended the Second Council of Nikaia (the Seventh Ecumenical Council) and is attested at the fourth session, on 1 October 787, when he subscribed the statements read out from the Fathers in support of the veneration of icons: Mansi XIII 153 (Εὐτυχιανὸς μοναχὸς τῶν Καλλιστράτου; the Latin version, at 154, calls him "
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