Alexios 4 was hypatos and basilikos spatharios; owner of a seal dateable to the ninth century: Schlumberger, Sig., p. 590, no. 2 (facsimile). Obv.: invocative monogram of Θεοτόκε βοήθει with the legend τω - σω - δου - λω. Rev.: Αλε - ξιω υπα - τω και βασι - ..κω σπα - θ.ριω. Schlumberger dated this seal to the eighth century, but the form of the beta was introduced only in the early to mid ninth century; cf. Oikonomides, Dated Seals, p. 159. Another seal, also dated to the eighth century but possibly owned by the same person as this in the ninth, is extant: Zacos and Veglery 1695. Obv.: cruciform monogram of Θεοτόκε βοήθει, with τω - σω - δου - λω in the corners. Rev.: +Αλ. - ξιω υπα - τω και βασι - λικω σπα - θαριω. The name and titles read: Ἀλεξίῳ ὑπάτῳ καὶ βασιλικῷ σπαθαρίῳ.

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