In the calendar of the Moscow Patriarchate both Venerable Onuphrios the Silent of the Kiev Caves (XII century), and Onesimos the Recluse of the Kiev Caves, Near Caves (XII-XIII century) are commemorated on July 21.
Venerable Onuphrios the Silent of the Kiev Caves was an ascetic in the Near Caves of Saint Anthony during the XII century. He is also commemorated on September 28 (Synaxis of the Fathers of the Near Caves).
Venerable Onesimos the Recluse of the Caves (XII-XIII), was an ascetic in the Kiev Caves Lavra. He enclosed himself in the Near Caves of Saint Anthony. The holy relics of Saint Onesimos are buried in the place of his ascetical contests. He is also commemorated on October 4 with Saint Elladios.
The term Kiev Caves refers to both the Far (Дальних) Caves of Saint Theodosios, and to the Near (Ближних) Caves of Venerable Anthony. If term Kiev Caves Lavra is used, it means both Caves. If the text only says Far Caves, it is taken for granted that it means just the Far Caves, and not the Near Caves (and vice versa).
The Synaxis of the Venerable Fathers of the Far Caves of Venerable Theodosios is celebrated on August 28. Furthermore, the Synaxis of All the Venerable Fathers of the Kiev Caves is observed on the second Sunday of Great Lent.
Troparion — Tone 8
By a flood of tears you made the desert fertile, / and your longing for God brought forth fruits in abundance. / By the radiance of miracles you illumined the whole universe! / O our holy father Onuphrius, pray to Christ our God to save our souls!