Sissinios 50 was basilikos protospatharios and epi tes megales hetaireias; owner of a seal dateable to the second half of the ninth century: Zacos II 888. Obv.: bust of Virgin with medallion of Child, the letters Μ(ήτηρ) Θ(εοῦ) on either side, and with the legend +Θ(εοτό)κε βοήθει τῷ σῷ δούλ(ῳ). Rev.: +Σηση - νιω β' α' σπ - αθ' (καὶ) επι τη - ς μεγ' ετε - ρης. The name and titles read: Σισιννίῳ βασιλικῷ πρωτοσπαθαρίῳ καὶ ἐπὶ τῆς μεγάλης ἑταιρείας.

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