Venerable Anthony of the Kiev Far Caves, founder of monasticism in Rus′ (†1073).
St. Anthony of the Kiev Caves is honored as the father of monasticism in the lands of Rus. Born at Lyubech, he received the monastic tonsure on Mount Athos, and returning north he settled in a cave above the Dnieper River near Kiev, where his holiness drew disciples and the great Monastery of the Caves took root.
With his disciple St. Theodosius he set the pattern of monastic life that shaped the piety of Rus for centuries. He reposed in 1073 and is commemorated on July 10.
Feast day
On the New Calendar, Anthony of the Kiev Caves is commemorated on July 10. Churches on the Old (Julian) Calendar keep the feast on July 23 of the civil calendar.
Also commemorated on July 10

Forty-Five Holy Martyrs of Nicopolis
Martyr, Μάρτυρες
The Forty-Five Holy Martyrs of Nicopolis in Armenia, martyred under Licinius (c. 319).
Apollonios of Sardis
Martyr, Απολλώνιος Σάρδεων
Holy Martyr Apollonios of Sardis, crucified for Christ.
Ten Thousand Fathers of Nitria
Martyr, Μύριοι Πατέρες
The Holy Ten Thousand Fathers martyred in the desert of Nitria.
Parthenios and Eumenios of Koudoumas
Venerable, Παρθένιος και Ευμένιος
Venerable Parthenios and Eumenios, founders of the Koudoumas Monastery in Crete.
Synaxis of the Saints of Vatopedi
Saint, Σύναξις Βατοπαιδινών Αγίων
Synaxis of all the Saints of the Holy Monastery of Vatopedi on Mount Athos.
Icon: public domain image from Wikimedia Commons.