May 19 - Eastern Orthodox Church calendar - May 21
All fixed commemorations below celebrated on June 2 by Orthodox Churches on the Old Calendar.
For May 20th, Orthodox Churches on the Old Calendar commemorate the Saints listed on May 7.
Saint Lydia of Thyatira (Lydia of Philippi), mentioned in Acts 16:14-15 (1st century)
Martyrs Thalelaeus the Unmercenary, and his companions Alexander and Asterius, at Aegae in Cilicia (284)
Martyr Asclas of the Thebaid, Egypt (287)
Saints Zabulon and Susanna, of Cappadocia and Jerusalem, parents of St. Nina (Nino), enlightener of Georgia (4th century)
Saint Mark the Hermit (Marcus Eremita) (5th century)
Holy Martyrs of Mamilla, Jerusalem (614)
Saint Thalassius the Myrrh-gusher, of Libya (648)
Saints Nicetas, John and Joseph, founders of the Monastery of Nea Moni on Chios (c. 1050)
Saint Plautilla the Roman, martyr, (67)
Hieromartyr Baudelius, missionary in France and northern Spain, martyred in Nîmes (2nd or 3rd century)
Saint Hilary (Hilarius, Hilaire), Bishop of Toulouse in France (360)
Saint Anastasius, Bishop of Brescia in Lombardy, in Italy (610)
Saint Austregisilus (Aoustrille, Outrille), Bishop of Bourges and Confessor (624)
Saint Theodore of Pavia, Bishop of Pavia (778)
Martyr Ethelbert (Albert, Albright), King of East Anglia in England (794) (see also May 29)