Note: This is only a theory, so there's no spoilers for the actual show or books. But if you're really allergic to any hint of a spoiler then maybe proceed with caution.
So, you know Jon Snow? Commonly referred to as "Ned Stark's bastard." No idea who his mother is.
Turns out the secret of who his mother is could actually be very significant.
LOL THANKS NED.
In fact, guessing the identity of Jon Snow's mother was actually the test George R. R. Martin gave David Benioff and D. B. Weiss when they asked if they could adapt his books into a show.
