Anonymus 257 was hegoumenos of the monastery of Dios at Constantinople (τὸν τῆς μονῆς προεστῶτα; ἡγούμενος; τὴν εὐαγεστάτην μονὴν τοῦ ὁσίου πατρὸς ἡμῶν Δίου); he learned the details of the death of Stephanos 2 (Stephen the Younger) from Theodoros 170, in secret, and together with him, also in great secrecy, and with the knowledge only of Stephanites 1, deposited some of Stephanos 8's remains in a casket in the monastery; later his refusal to appoint Stephanites 1 to the diaconate, on the grounds that he was too immature, provoked Stephanites 1 to accuse him of honouring Stephanos 2 and to disclose the story of the casket; the affair came before the emperor and the stage was set for the disgrace of Theodoros 170 and the hegoumenos when mysteriously the only evidence, the casket, disappeared and the charges had to be dropped; the two men were restored to their former wealth and status: Vita Steph. Iun. 172.26 (1180C), 173.18-174.24 (1181A-C).

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