Heraklios 4 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | L VIII |
| Dates | 787 (taq) / 787 (tpq) |
| PmbZ No. | 2563 |
| Variant Names | Herakleios; Heraclius |
| Religion | Christian; Iconophile |
| Locations | Samos (officeplace); Samos; Nikaia |
| Occupation | Bishop |
| Titles | Bishop, Samos (office) |
| Textual Sources | Nikaia, Second Council of (Seventh Ecumenical Council, a. 787) (Mansi XII-XIII) (conciliar) |
Heraklios 4 was bishop of the island of Samos; in 787 he attended the Second Council of Nikaia (the Seventh Ecumenical Council), where he is attested only at the seventh session; in the list of those present then he is styled Ἡρακλείου ἐπισκόπου τῆς Σάμου: Mansi XIII 373. At the seventh session he subscribed the statement of the faith adopted by the Council; he is styled Ἡράκλειος ἀνάξιος ἐπίσκοπος τῆς Σάμου: Mansi XIII 396.
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