Sabbatios 1 was a Stoudite monk, the addressee, jointly with Anatolios 3, of two letters from Theodore the Stoudite (Theodoros 15): Theod. Stud., Ep. 81 (written in spring 816, and addressed Ἀνατολίῳ καὶ Σαββατίῳ τέκνοις), Ep. 164 (written between 815 and 818 and addressed Ἀνατολίῳ τέκνῳ, but the contents prove that the letter was also sent to Sabbatios 1). He is mentioned in a letter to Anatolios 3, written in March/April 818: Theod. Stud., Ep. 311. He and Anatolios 3 wrote three letters to Theodoros 15 when he was in exile, and Theodoros 15 replied with news of Nektarios 1 and Orestes 2 and greetings from Hypatios 7 and Nikolaos 26: Theod. Stud., Ep. 81. He and Anatolios 3 were together, probably with Simon 3, when Theodoros 15 wrote Ep. 164. They are addressed as ἀδελφοί μου and ἐπιπόθητά μου τέκνα καὶ λίαν ἠγαπημένα or similar: Epp. 81, 164. By March or April 818 he had defected and abandoned the iconophile cause: Theod. Stud., Ep. 311.

(Publishable link for this person: )