Kosmas 15 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | L VIII |
| Dates | 787 (taq) / 787 (tpq) |
| PmbZ No. | 4114 |
| Variant Names | Cosmas |
| Religion | Christian; Iconophile |
| Locations | Hagia Theotokos of the Paradeision (Monastery of the) (officeplace); Hagia Theotokos of the Paradeision (Monastery of the) (residence); Hagia Theotokos of the Paradeision (Monastery of the); Nikaia |
| Occupation | Hegoumenos |
| Titles | Hegoumenos, Theotokos of the Paradeision (office) |
| Textual Sources | Nikaia, Second Council of (Seventh Ecumenical Council, a. 787) (Mansi XII-XIII) (conciliar) |
Kosmas 15 was hegoumenos of the monastery of the Hagia Theotokos of the Paradeision; 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 156 (Κοσμᾶς ἡγούμενος τῆς ἁγίας Θεοτόκου τοῦ Παραδεισίου; the Latin version, at XIII 155, styles him "
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