Saint Margaret is my confirmation patron in case you were wondering.  Her feast day is Sunday.  

Prayer of the Church

WE BESEECH Thee, O Lord, grant us Thy favor through the intercession of Thy blessed Virgin and Martyr Margaret, who pleased Thee by the merit of her purity and by the confession of Thy might. Through Christ our Lord. Amen.

Prayer in Honor of St. Margaret

O GOD, grant us through the intercession of Thy holy Virgin and Martyr Margaret, undauntedly to confess the Faith, carefully to observe the chastity of our state of life, and to overcome the temptations of the world, the flesh, and the devil, and thereby escape the punishments of eternal damnation. Amen.

Invocation of St. Margaret

ST. MARGARET, holy Virgin and Martyr, thou didst faithfully preserve the robe of holy innocence and purity, valiantly resisting all the blandishments and allurements of the world for the love of thy Divine Spouse, Jesus Christ; help me to overcome all temptations against the choicest of all virtues, holy purity, and to remain steadfast in the love of Christ, in order to preserve this great gift of God. Implore for me the grace of perseverance in prayer, distrust of myself, and flight from the occasions of sin, and finally the grace of a good death, so that in Heaven I may "follow the Lamb whithersoever He goeth." Amen.


St. Margaret's voice was one of the Voices heard by St. Joan of Arc.  St. Margaret is invoked against backache; she is a patroness of women in childbirth.  She is one of the Fourteen Holy Helpers.

Ant. The kingdom of heaven is like unto a merchantman * seeking goodly pearls, who, when he had found one pearl of great price, went and sold all that he had, and bought it.

V. Grace is poured into thy lips.
R. Therefore God hath blessed thee for ever.

Hymn
Jesu, the virgins' crown, do thou
 Accept us as in prayer we bow;
 Born of that Virgin, whom alone
 The mother and the maid we own.

 Amongst the lilies thou dost feed,
 By virgin choirs accompanied;
 With glory decked, the spotless brides
 Whose bridal gifts thy love provides.

 They, wheresoe'er thy footsteps bend,
 With hymns and praises still attend:
 In blessèd troops they follow thee,
 With dance, and song, and melody.

 We pray thee therefore to bestow
 Upon our senses here below
 Thy grace, that so we may endure
 From taint of all corruption pure.

 * All laud to God the Father be,
 All praise, eternal Son, to thee;
 All glory as is ever meet,
 To God, the holy Paraclete. Amen.
 Amen.



 

According to the version of the story in Golden Legend, she was a native of Antioch, and she was the daughter of a pagan priest named Aedesius. Her mother having died soon after her birth, Margaret was nursed by a pious woman five or six leagues from Antioch. Having embraced Christianity and consecrated her virginity to God, she was disowned by her father, adopted by her nurse and lived in the country keeping sheep with her foster mother (in what is now Turkey).[3] Olybrius, Governor of the Roman Diocese of the East, asked to marry her but with the price of her renunciation of Christianity. Upon her refusal she was cruelly tortured, during which various miraculous incidents occurred. One of these involved being swallowed by Satan in the shape of a dragon, from which she escaped alive when the cross she carried irritated the dragon's innards. The Golden Legend, in an atypical passage of skepticism, describes this last incident as "apocryphal and not to be taken seriously" (trans. Ryan, 1.369). She was put to death in A.D. 304.

Saint Margaret, as Saint Marina, with associations to the sea, 'may in turn point to an older goddess tradition', reflecting the pagan divinity Aphrodite.[4]

Veneration[edit]The Eastern Orthodox Church knows Margaret as Saint Marina, and celebrates her feast day on July 17. She has been identified with Saint Pelagia. "Marina" being the Latin equivalent of the Greek name "Pelagia" who, according to a legend, was also called Margarita. We possess no historical docuмents on St. Margaret as distinct from St. Pelagia. The Greek Marina came from Antioch, Pisidia (as opposed to Antioch of Syria), but this distinction was lost in the West.

The cultus of Saint Margaret became very widespread in England, where more than 250 churches are dedicated to her, most famously, St. Margaret's, Westminster, the parish church[5] of the British Houses of Parliament in London. Some consider her a patron saint of pregnancy. In art, she is usually pictured escaping from, or standing above, a dragon.

She is recognized as a saint by the Roman Catholic Church, being listed as such in the Roman Martyrology for July 20.[6] She was also included from the twelfth to the twentieth century among the saints to be commemorated wherever the Roman Rite was celebrated,[7] but was then removed from that list because of the entirely fabulous character of the stories told of her.[8] Margaret is one of the Fourteen Holy Helpers, and is one of the saints who spoke to Joan of Arc.

http://en.wikipedia.org/wiki/Margaret_of_Antioch