April 13 (Eastern Orthodox liturgics)
April 12 - Eastern Orthodox liturgical calendar - April 14
Saint Martin the Confessor (Menologion of Basil II)
Saint Hermenegild (Francisco Herrera, 1684)
Reliquary of St. Arsenios of Elassonna, in the Theotokos-Nativity Cathedral of the Kremlin.
Venerable Herman, Archimandrite, of Svyatogorsk Monastery.
April 12 (Eastern Orthodox liturgics)
April 11 - Eastern Orthodox liturgical calendar - April 13
The Church of São Victor, in the municipality of Braga, Portugal.
Relics of Hieromartyr Zeno of Verona, Bishop of Verona.
St Erkemboden's tomb in Saint-Omer Cathedral, with votive offerings placed on top.
Saint Alferius, founder of the Monastery of La Cava.