St. Agnes is familiar to Catholics as being one of seven seven women, who along with the Blessed Virgin, are commemorated by name in the Canon of the Mass. Tradition says that Agnes was born in AD291 a member of the Roman nobility, and raised in a Christian family. At 12 or 13, she was martyred during the reign of the Roman Emperor Diocletian, on January 21, 304.
She is a patron saint of chastity, gardeners, girls, engaged couples, rape survivors, and virgins.
Learn more about St. Agnes in this video from the ApostleshipOfPrayer.