Bingley posted on the blog in 2006: cornelia, mother of the gracchi. (The Bibliotheca Augustana website linked in that post is not working as of this writing, hopefully this is temporary only.)
I just found a book: Cornelia, Mother of Gracchi (Women of the Ancient World) by Suzanne Dixon, Routledge 2007. It's small and expensive, however the informative Preface may be previewed at the above Amazon link. Other excerpts are available in the corresponding Google Book.