September 20 (Eastern Orthodox liturgics)
Sep. 19 - Eastern Orthodox liturgical calendar - Sep. 21
St. Eustathios Placidas.
Martyrdom of St. Eustathios Placidas and family.
Eustathios of Thessaloniki, Archbishop (c.1175 - c.1195/6).
Holy Martyr Blessed Prince Michael of Chernigov.
September 19 (Eastern Orthodox liturgics)
Sep. 18 - Eastern Orthodox liturgical calendar - Sep. 20
Martyrs Trophimus, Sabbatius, and Dorymedon of Synada.
Blessed Igor (George), tonsured Gabriel, great prince of Chernigov.
Sts. Prince Theodore of Smolensk and his children Saints David and Constantine.