ASOIAF #3: Jon could actually be a legitimate Targaryen.

OK, we get into a more controversial topic today. Many a thread has been fought on the forums between the believers and the non-believers. :D I'll present the evidence as I know it, which is biased toward my point of view, but I try to address the dissenters' arguments as best as I can.

Today's theory: ( Jon could actually be a legitimate Targaryen. )