27 Мая 1866 - Orthodox Calendar / Orthodox Menologion Online

Sunday, May 27, 1866 (May 15, 1866 by the Julian calendar)
Pentecost - Trinity Sunday

[.:] St. Pachomius the Great, founder of cenobitic monasticism (346). [.:] St. Isaiah, bishop and wonderworker of Rostov (1090). [.:] The slain Crown Prince Demetrius of Moscow (1591). St. Isaiah, wonderworker of the Kiev Caves (1115). Pachomius, abbot and Silvanus of Nerekhta (1384). St. Euphrosynus (Eleazar), abbot, wonderworker of Pskov (1481), and his disciple St. Serapion (1480). St. Achilles, bishop of Larissa (330). St. Pachomius, abbot of Nerekhta (1384), and St. Silvanus, of Nerekhta. "Tupichesky" Icon of the Mother of God. Elder Macarius (Ivanov) of Optina. St. Barbaras the Myrrh-gusher of Greece (9th c.) (Greek). New Hieromartyrs Pachomius, archbishop of Chernigov (1938), his brother Abercius, archbishop of Zhitomir (1937), their father Priest Nicholas Kedrov (1936), and their brother-in-law Priest Vladimir Zagarsky (1937). St. Dymphna, martyr of Geel, Flanders (7th c.) (Neth.). St. Arethas of Verkhoturye and Valaam (1903).