Gregorios 15 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | M/L VII |
| Dates | 680 (taq) / 681 (tpq) |
| PmbZ No. | 2351 |
| Variant Names | Gregorius |
| Religion | Christian; Anti-monothelete |
| Locations | Kantanon (Crete) (officeplace); Kantanon (Crete); Constantinople |
| Occupation | Bishop |
| Titles | Bishop, Kantanon (Crete) (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) |
Gregorios 15 was bishop of Kantanon in Crete; he attended the Third Council of Constantinople (the Sixth Ecumenical Council) in 680 and 681 and was present at all eighteen sessions: Riedinger, II 2. 18-825 (= Mansi XI 212-673). In the subscriptions to the statement of the faith, which condemned monotheletism, and to the Council he is styled Γρηγόριος ἐλέει Θεοῦ ἐπίσκοπος Καντάνου τῆς Κρητῶν νήσου: Riedinger, II 2. 784, line 19, II 2. 825, line 20 (= Mansi XI 645, 673). In the lists of those attending each session he is styled Γρηγορίου ἐπισκόπου Καντάνου: Riedinger, II 2. 18, line 15, II 2. 30, line 17 etc. (= Mansi XI 212, 220, etc.) (The Latin versions of these lists occasionally give his name as "
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