User blog comment:NoCosNicStar/Faust and Makarov/@comment-178.148.168.171-20140322182929/@comment-7418318-20140323111450

@ first post: I very much doubt it.

For starters, we have different species (Ichiya-Nichiya, Grandeeney-Porlyuscia) different ages (EL Wendy 12-Edo Wendy between 18 and 20, most likely Grandeeney and Porlyuscia are of different ages too) and different genders (EL Hughes female-Edo Hughes male) between the dimensional equivalents so I don't see why they can't have different parents.

And then there's the age matter. Makarov was 88 when Jellal was 19. Very few men can still beget a child at the age of 69 even if they wanted to, so we can pretty much rule out Jellal being Laxus' uncle. And since Laxus is three or four years older than Jellal it's also impossible for Jellal to be Laxus' son.

@2nd Anon: That flashback of Fairy Tail's founding was from 105 years before, which was ten years before Makarov was even born.

And Jellal is 26. 105 years earlier Jellal's parents weren't born yet for sure and likely even his grand parents weren't born yet.

Barring Time-travel I think we can be sure that the mystery person is neither Makarov nor Jellal. Maybe Makarov's father or an ancestor of Jellal, but certainly no either one in person.