One of the miracles associated with the Shrine:
The second well-known intervention of Our Lady of Prompt Succor concerns the Battle of New Orleans, January 8, 1815. During the night of January 7, Andrew Jackson and his relatively small, little-prepared and ill-equipped band of soldiers organized their defenses against the large, very well equipped British army which would attack the city before dawn. At the same time, many citizens not directly involved in the army joined the Ursuline Sisters in an all-night vigil in their chapel on Chartres Street, imploring Our Lady of Prompt Succor to give the victory to Jackson for the United States, saving the city of New Orleans from British control. During the night, the Superior, Mother Ste. Marie Olivier de Vezin, promised Our Lady that if Jackson and his men won, a Mass of thanksgiving would be sung every year in memory of her saving help to the city on that day. As dawn was breaking, Fr. DuBourg began a Mass for the same intention. At the very moment of the Communion a courier rushed into the chapel announcing that Andrew Jackson and his men had won the victory, and the Mass ended with the joyous singing of the Te Deum.
These are two prayers said to Our Lady,
Our Lady of Prompt Succor, You are after Jesus our only hope. O Most Holy Virgin, whose merits have raised You high above angel choirs to the very throne of the Eternal and whose foot crushed the head of the infernal serpent, You are strong against the enemies of our salvation. O Mother of God, You are our Mediatrix most kind and loving. Hasten, then to our help, and as You once saved Your beloved City from ravaging flames and our Country from an alien foe, do now have pity on our misery, and obtain for us the graces we beg of You. Deliver us from the wiles of Satan, assist us in the many trials which beset our path in this valley of tears, and be to us truly Our Lady of Prompt Succor now and especially at the hour of our death. Amen.
O Mary, mother of God, who amid the tribulations of the world, watches over us and over the Church of Your Son, be to us and to the Church, truly, Our Lady of Prompt Succor; make haste to help us in all our necessities, that in this fleeting life You may be our succor, and obtain for us (here ask the particular favor you desire). Help us to gain life everlasting through the merits of Jesus, Your Son, Our Lord and Redeemer. Amen.