Church calendar for 4 June 2121

Saints commemorated

• Equal-to-the-Apostles Constantine the Great, Equal-to-the-Apostles 272–337
• Equal-to-the-Apostles Equal-to-the-Apostles Constantine and Helen IV век
• Equal-to-the-Apostles Helena, Equal-to-the-Apostles ок. 250 – ок. 330
• Right-believing Prince Constantine (Yaroslav Svyatoslavich) of Murom † 1129
• Righteous Theodore of Ostrov (Oyat) XVI век