Mentioned in the charter concerning the return of the posession in the village Hagios Georgios to the Monastery of the Holy Mother of God Spelaiotissa in Melnik from May 1304 and in the deed of gift of Georgios Kontostephanos Kalameas and his wife Eirene Kontostephanina Kapantritissa for the Monastery of Iberon from December 1309. He was a Protosynkellos and Archimandrite of the Monastery of the Holy Mother of God Spelaiotissa in Melnik. In May 1304 the unlawfully taken small possession (κτῆμα μικρὸν) Hagios Georgios near the village Hostrobos in the size of two yokes (εἰς τὸ̣ν Ἅγιον Γεώργιον, πο̣σουμενον γῆ ζευγαρίων δύο εἰς ὑπέρπυρα τέσσαρα... εἰς τὴν περιοχὴν εὑρισκόμενον τοῦ Ὁστροβοῦ ἐπιλεγώμενον) was given back to the Monastery of the Mother of God Spelaiotissa in Melnik. The possession belonged to the monastery according to the records of the thema Melenikos (ἐν τῶ τοῦ Μελλενίκου θέματος). The boundaries of the possession were examined in the presence of Gerasimos, the Archimandrite of the Monastery of the Mother of God Spelaiotissa in Melnik (καὶ ἀπελθὼν ἐκεισαι εἰς τὸν λεγόμενον Ἅγιον Γεώργιον εἰς τὴν περιοχὴν τοῦ Ὁστροβοῦ με̣τὰ καὶ τοῦ ἀρχημανδρίτου ἁγίου πατρὸς Γερασίμου ἱερομονάχου, ποιμένος λεγω τῆς εἰρημένης ἁγίας μονῆς, κ̣α̣ὶ̣ τῆς ὑπ’ αὐτοῦ ποίμνης). Gerasimos also signed and approved the deed of gift of Georgios Kontostephanos Kalameas and his wife Eirene Kontostephanina Kapantritissa for the Monastery of Iberon from December 1309 (Ὁ̣ ἀρχιμανδρίτης καὶ πρωτοσίγγελο̣ς̣ τῆς σεβασμίας μο̣νῆς τῆς ὑπεράγνο̣υ̣ μου Θεομήτορο̣ς τῆς Σπηλαιωτίσσης Γερά̣σιμ̣ος ἐ̣π̣ὶ̣ τὸ παρὸν τ̣ῆς π̣αρα̣δόσεως γρ̣άμμα μαρτυρῶν ὑπ̣έγραψεν).