Celebration on July 21 and November 4
Appearing of the Icon of the Most Holy Mother of God in the Grad of Kazan (1579)
On October 1, 1552, on the feast of the Intercession of the Most Holy Mother of God, at night, John IV, the leader of the Russian soldiers preparing for a decisive assault on the Tatar Kazan, suddenly heard the chime of Moscow bells. The Tsar realized that this was a sign of God's mercy: through the prayers of the Chosen Voivode, the Lord wanted to turn the people of Kazan to Himself.