User blog comment:FairyRaven/Fairy Tail Chapter 401: Igneel vs. Acnologia, Review and Commentary/@comment-77.194.131.12-20140922125827/@comment-7418318-20140922132535

For it to be related to Layle doesn't mean she had to live 400 years ago. She could have inherited, been granted or somehow discovered something that linked her fate with the whole affair.

If it's inheritence, it might even have passed onto Lucy... whatever "it" is.