Kosmas 55 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | IX |
| PmbZ No. | 4145 |
| Titles | Basilikos spatharios (dignity); Protospatharios (dignity); Notarios, unknown (office) |
| Seal Sources | Zacos, G. and Veglery, A., Byzantine Lead Seals, vol. I (in 3 parts) (Basel, 1972). |
Kosmas 55 was a protospatharios (or: Basilikos spatharios) and notarios of the idikos logos; owner of a seal dateable to the ninth century (Zacos and Veglery), possibly to the first half (Laurent): Zacos and Veglery 2085 (IX) = Laurent, Corpus II 626 (E/M IX). The name and titles read: Κοσμᾷ πρωτοσπαθαρίῳ (so Zacos and Veglery; Laurent read: βασιλικῷ σπαθαρίῳ) καὶ νοταρίῳ τοῦ ἰδικοῦ λόγου. See also Kosmas 65.
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