Today the church celebrates the miracle of the Vladimir Icon of the Mother of God, which led to the saving of Moscow from the invasion of Khan Achmed in 1480.
The Vladimir Icon of the Most Holy Theotokos is also commemorated on May 21 and August 26.
Troparion - Tone 4
O Mistress, Empress and Lady,
Defend all who are in danger and misfortune
Or weak from many sins,
And who stand before your holy Icon
Praying with tears, humility, repentance, and invincible hope,
Free them from all evil,
Give them the grace they need.
And save us all, O Virgin Mother of God,
For Your are the divine refuge of those who follow you!