December 7 (old calendar) / December 20 (new) Nativity Fast St. Ambrose, Bishop of Milan (397). Ven. Anthony, Abbot of Siya (Novgorod—1558). Ven. Nilus of Stolobénsk (1554). Ven. John the Faster, of the Kiev Caves (Near Caves—12th c.). Martyr Athenodorus of Mesopotamia (ca. 304). Ven. Paul the Obedient. St. Philoftheia of Thrace, Protectress of Romania (12th c.). Ven. Gregory, Founder of Grigoriou Monastery (Mt. Athos—14th c.). SAINT AMBROSE Saint Ambrose,