Ioannes 216 was a basilikos silentiarios; owner of a seal dateable to the eighth or ninth century: Schlumberger, Sig., p. 587, no. 6 (facsimile). Obv. : invocative monogram of Θεοτόκε βοήθει with the legend τω - σω - δου - λω. Rev.: +Ιωαν - νῃ βασηλι - κῳ σηλην - τηαρίῳ. Possibly identical with Ioannes basilikos silentiarios who owned a very similar seal dateable, according to Zacos and Veglery, to the ninth century: Zacos and Veglery 2053. The name and title read: Ἰωάννῃ βασιλικῷ σηληντιαρίῳ. Ioannes 216 may be identical with Ioannes 235, but the high frequency of the name makes it unsafe to identify them without further evidence; the title basilikos silentiarios is not sufficiently distinctive to confirm the identification. See Rochow, Konstantin V, p. 219.

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