Attested in the two marginal notes in the manuscripts, which were written by the scribe Stanislav Lesnovski in 1330 and 1342. He was the Hegumen of the Monastery of the Archangel Michael and Holy Father Gabriel in Lesnovo. The scribe Stanislavь finished his prologue in the time, when Theōdosi was the Hegumen of the Monastery of the Archangel Michael and Holy Father Gabriel in Lesnovo (pri igumeně Theōdosi). Stanislavь copied also a Menaion at the request of Jovan Oliver in 1342. He again mentions Theōdosii as the spiritual leader of the Monastery of the Archangel Michael and Holy Father Gabriel in Lesnovo (Pisa že se kniga sija vь lěto ѕ.ō.n. carьstvujuštu gospodu našemu Ïsu-Hristu, pri igumeně Theōdosi).