Ambrose: Concerning Virgins
- Book 1, Chapter 2 of this treatise tells the story of St. Agnes. From the Nicene and Post-Nicene Fathers of the Christian Church, second series, vol. 10. In HTML, with notes, at Christian Classics Ethereal Library.
- http://www.ccel.org/ccel/schaff/npnf210.iv.vii.ii.ii.html

Agnes, Saint
- Short article on her legend. In the 1911 Encyclopædia Britannica.
- http://encyclopedia.jrank.org/ADA_AIZ/AGNES_SAINT.html

Saint Agnes--Virgin, Martyr (c. 314 A.D.)
- From the book "Lives of Saints," published by John J. Crawley.
- http://www.ewtn.com/library/MARY/AGNES.htm

Agnes
- Illustrated hagiography.
- http://www.saintpatrickdc.org/ss/0121.htm

Catholic Online: St. Agnes
- The story of this Roman girl. Suitable for children.
- http://www.catholic.org/saints/saint.php?saint_id=106

The Ecole Glossary: Agnes of Rome
- Short essay, by Karen Rae Keck.
- http://www2.evansville.edu/ecoleweb/glossary/agnes.html

Agnes of Rome, Martyr
- With prayer in traditional and contemporary language.
- http://elvis.rowan.edu/~kilroy/JEK/01/21a.html

St. Agnes of Rome
- Virgin, martyred at the age of 12 or 13, revered since at least the mid-fourth century. Article in the Catholic Encyclopedia.
- http://www.newadvent.org/cathen/01214a.htm

Saints for Young Readers for Every Day: St. Agnes
- The story of this brave girl, for children.
- http://www.tntt.org/vni/tlieu/saints/St0121.htm

Patron Saints Index: Agnes of Rome
- Illustrated profile.
- http://www.catholic-forum.com/saints/sainta05.htm

Catholic Community Forum: St. Agnes
- Illustrated hagiography, with quotes from the Fathers.
- http://www.catholic-forum.com/themes/st_agnes.html

Shonnie Scarola: Saint Agnes
- Illustrated hagiography.
- http://www.domestic-church.com/CONTENT.DCC/19990101/SAINTS/stagnes.htm

Catherine Fournier: Saint Agnes
- Three accounts of the saint's life: for children ages 0-8, children 8-14, and age 14-adult.
- http://www.domestic-church.com/CONTENT.DCC/19980101/SAINTS/STAGNES.HTM

Lives of the Saints: St. Agnes
- Virgin, martyr. Entry from Butler's Lives of the Saints.
- http://www.cin.org/saints/agnes.html