Ioannes 243 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | M/L IX |
| Dates | 872 (taq) / 882 (ob.) |
| Variant Names | pope John VIII |
| Religion | Christian |
| Locations | Rome (officeplace); Rome (residence); Rome |
| Occupation | Bishop |
| Titles | Bishop, Rome (office) |
| Textual Sources | Vita Ignatii Patriarchae, by Nicetas (BHG 817), PG 105.488-574) (hagiography) |
Ioannes 243 was bishop of Rome from 872 to 882 (John VIII). In 877/878 he received Theodoros (see PBE II) as apokrisiarios sent by the patriarch Photios 1 from Constantinople shortly after Photios 1 came to the patriarchate for the second time (in 877): Nicetas, Vita Ignatii 572C (πρὸς Ἰωάννην τὸν πάπαν).
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