Laurentios 3 was a monk, priest (ἱερωσύνης ἠξίωται: p. 183, lines 14-15) and hegoumenos of an unknown monastery, whose death during the present persecution is mentioned by Theodore the Stoudite (Theodoros 15) in a letter written between 815 and 820 to the monk Agatho 10 (who was his designated successor) and to the other monks of his monastery; he was a famous ascetic (ἀπὸ κόπων ἀσκητικῶν: p. 183, lines 3-4), who had suffered persecution and exile both during the Moechian schism and again during the iconoclast persecution under Leo V (Leo 15) (οὗ καὶ ἐξορίαι διὰ Κύριον καὶ διωγμοί, καὶ πρότερον καὶ ὕστερον: p. 183, line 18); he is described as ὁ μακάριος Λαυρέντιος (p. 183, line 2): Theod. Stud., Ep. 68, pp. 183-184.

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