Blessed Lawrence, Fool-for-Christ of Kaluga.
Blessed Lawrence lived in Kaluga in Russia in the early sixteenth century as a fool-for-Christ, going barefoot in winter and summer. Tradition relates that his prayers helped the city withstand a Tatar attack.
He reposed in 1515 and a monastery was later founded at the place of his ascetic struggles.
Feast day
On the New Calendar, Lawrence of Kaluga is commemorated on August 10. Churches on the Old (Julian) Calendar keep the feast on August 23 of the civil calendar.
Also commemorated on August 10

Lawrence the Archdeacon
Martyr, Λαυρέντιος
Holy Archdeacon-Martyr Laurence of Rome.
Name days: Lavrentios, Lawrence, Laurence, Lorenz, Lauro
Sixtus of Rome and Hippolytus
Hierarch, Ξύστος Ρώμης και Ιππόλυτος
Hieromartyr Sixtus, Pope of Rome, with the Martyr Hippolytus, companions of the Archdeacon Lawrence.
Agathonike of Carthage
Holy Woman, Αγαθονίκη η εν Καρχηδόνι
Holy Virgin Martyr Agathonike, who suffered at Carthage.