May 28 (Eastern Orthodox liturgics)
May 27 - Eastern Orthodox Church calendar - May 29
All fixed commemorations below celebrated on June 10 by Orthodox Churches on the Old Calendar.
For May 28th, Orthodox Churches on the Old Calendar commemorate the Saints listed on May 15.
St. Nicetas the Confessor, Archbishop of Chalcedon (Menologion of Basil II).
St. Senator of Milan.
St. Justus of Urgell.
Side of the Cathedral of St. Justus of Urgell, Spain.
St. Germain of Paris (from a Book of Hours illuminated by Jean le Tavernier, c. 1450-1460).
Romanesque apse of Saint-Guilhem-le-Désert, in Hérault, France - the monastery William of Gellone founded in 804 and entered in 806.
St. Ignatius of Rostov.
Greek Sources
Russian Sources
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Wikipedia