Eustathios 59 | Prosopography of the Byzantine Empire |
| Floruit | IX |
| PmbZ No. | 1790 |
| Titles | Basilikos spatharios (dignity); Asekretis (office) |
| Seal Sources | Laurent, V., Le corpus des sceaux de l'empire byzatin, V, 1-3, L'église (Paris, 1963-72); II, L'administration centrale (Paris, 1981) |
Eustathios 59 was basilikos spatharios and asekretis; owner of a seal dateable to the ninth century: Laurent, Corpus II, no. 42. His name and titles read: Εὐσταθίῳ βασιλικῷ σπαθαρίῳ καὶ ἀσηκρῆτις.
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