User blog comment:IamJakuhoRaikoben/Chapter 484: The Monstrous Six, Review./@comment-97.104.196.55-20160510001626

I think Gildarts is Erza's father and Irene and Cornelia were Gildarts's first two hoes and the 13 other women Gildarts was with after he left Cana's mother makes 15 women that Gildarts has been with.