Mentioned in the colophone (170b) of the festal Menaion, which has been preserved in the Chludov collection of the manuscripts at the State Historical Museum in Moscow under the signature 164. The manuscript was written between the years 1371 and 1394. He was a Priest. The dijak (scribe) Dobre wrote the festal Menaion at Kalugerьcь in the region of Porěčie for him during the reign of Marko Mrnjavčević (Pysa se sija knyga u Porěči, u selě zovom Kalugerecь vь dьni blagověrnago kralja Mar’ka, jegda ōdade Thodoru Grьgurovu ženu Hlapenu, a uze ženu svoju prьvověn’čan’nu Jelenu, Hlapenovu dьštere. Vь to vřeme se pisa popu Todoru na Kalugerci rada tod sa zetu, azь mnogogrěšni i nedostōini i vsěhь poslědny nedostojenь narešti se rabь Hristu Dobre dijak Radovь synь ōt Margarita, pōpa Stankovь bratь).