Theophanes 17 was a basilikos spatharios and holder of another title or office of which the name is lost; owner of a seal dateable to the late seventh or early eighth century: Seibt, Bleisiegel I, no. 177. Obv.: + - Κύριε ὁ - Θεὼς βο - ήθι τῷ ς - ῷ δού[λ(ῳ)]. Rev.: Θ[ε]ω - φάνῃ βας - ιλικῷ σπα - θαρίῳ (καὶ) - [....]. Seibt draws attention to the popularity of invocations like that on the obverse on seals of the late seventh and early eighth centuries.

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