May 20 (Eastern Orthodox liturgics)
May 19 - Eastern Orthodox Church calendar - May 21
St. Lydia of Thyatira.
St. Marcus Eremita.
Church of St. Theodore of Pavia, in Pavia.
The martyred Anglo-Saxon king Æthelberht II of East Anglia (depiction of a brass plate from Hereford Cathedral).
May 19 (Eastern Orthodox liturgics)
May 18 - Eastern Orthodox Church calendar - May 20
Apse mosaic from the Church of Santa Pudenziana, Rome.
St. Dunstan.
St. Dmitry Donskoy.
St. Onuphrius (Gagaliuk), Archbishop of Kursk and Oboyansk.