Today, October 7th, we Catholics commemorate the feast of Our Lady of the Rosary. As explained in The Liturgy of the Hours:
So, in view of Mary's prayer of praise, The Magnificat:The feast of the Holy Rosary was instituted by Pope Pius V to celebrate the anniversary of the defeat of the Turkish fleet at the battle of Lepanto on the first Sunday in October 1571, which ended the threat of Muslim domination of the Mediterranean and was ascribed in part to the prayers and processions of the Rosary confraternity in Rome. Later the feast was moved to the fixed date of 7 October.
... I request Mary's intercession:And Mary said, "My soul magnifies the Lord, and my spirit rejoices in God my Savior, for he has regarded the low estate of his handmaiden. For behold, henceforth all generations will call me blessed; for he who is mighty has done great things for me, and holy is his name. And his mercy is on those who fear him from generation to generation. He has shown strength with his arm, he has scattered the proud in the imagination of their hearts, he has put down the mighty from their thrones, and exalted those of low degree; he has filled the hungry with good things, and the rich he has sent empty away. He has helped his servant Israel, in remembrance of his mercy, as he spoke to our fathers, to Abraham and to his posterity for ever."(Luke1:46-55)
Hail Mary, full of grace, the Lord is with you. (Luke 1:28)
Blessed are you among women,
and blessed is the fruit of your womb, Jesus. (Luke 1:42)
Holy Mary, Mother of God,
Pray for us sinners, now and at the hour of our death. Amen.