Demetrios 1 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | M/L VII |
| Dates | 681 (taq) / 681 (tpq) |
| PmbZ No. | 1277 |
| Variant Names | Demetrius |
| Religion | Christian; Anti-monothelete |
| Locations | Tenos (officeplace); Tenos; Constantinople |
| Occupation | Bishop |
| Titles | Bishop, Tenos (Insulae) (office) |
| Textual Sources | Constantinople, Third Council of (Sixth Ecumenical Council), ed. R. Riedinger, Concilium Universale Constantinopolitanum Tertium, ACO II.2. 1 (Berlin, 1990-1992); also cited from Mansi XI passim (conciliar) |
Demetrios 1 was bishop of the island of Tenos; in 681 he attended the Third Council of Constantinople (the Sixth Ecumenical Council) and was present at the last nine sessions (sessions ten to eighteen, from 18 March to 16 September): Riedinger, pp. 282-828 (= Mansi XI 389-680). In the subscriptions to the statement of the faith, which condemned monotheletism, and to the Council, he is styled Δημήτριος ἐλέει Θεοῦ ἐπίσκοπος νήσου Τίνου: Riedinger, p. 794, line 15, p. 828, line 19 (= Mansi XI 652, 680). In the lists of those attending each session he is styled Δημητρίου ἐπισκόπου Τίνου: Riedinger, p. 282, line 20, p. 406, line 31 etc. (= Mansi, 389, 460, etc.)
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