An Acrostic to Our Lady

This one's initials are Latin. Translation, anybody but Lucia? :)

Mother of God, Mother of all Mankind
And yet a maiden stainless, full of grace,
Receive the praise we send before thy face,
In tearful vales by chains of sin confined.
As thou art pure, so may we also be;
Mother, O aid us to be good alway,
And pray thy Son, as we thy children pray,
To pardon all our foul iniquity.
Eternal Queen of angels and of men,
Redemptrix, with thy Son, of all our race,
Defeat the serpent, who with lying face
Of hellish beauty tempts our souls to sin.
Mary! Maria! Mother-Maiden free!
In darkness be our star, by day our sun,
Never to leave us till we greet thy Son
In heaven's glories for eternity.