13 April 1931, Monday (31.03 according to the old style)
Church calendar for 13 April 1931
Saints commemorated
- Hierarch Innocent (Veniaminov), Metropolitan of Moscow 1797 — †31 марта 1879
- Hierarch Jonah, Metropolitan of Kiev and All Russia кон. XIV века — †31 марта 1461
- Hieromartyr Benjamin Of Persia †ок. 421-424
- Venerable Hypatius the Healer of the Kiev Caves XIV век
- Right-believing Prince John (Ivan) I Danilovich Kalita, Grand Prince of Moscow ок. 1288 — †31 марта 1340
- Hieromartyr Hypatius of Gangra † ок. 326
- Venerable Hypatius of Rufinianae ок. 366 — 446
- Hierarch Saint Jonah, Metropolitan of Moscow and All Russia ум. 1461