Forgive me If this is already a topic here. Ever since the GOT Ive had a strong feeling that Jon Snow is not Ned Starks son. It came from all the passages of his Sister making him promise her something. I think Jon is Neds brother, and he only claimed him as his bastard in order to protect the Baby from Robert. Ive only read through the series once, so I might of missed something that disproves this theory, if not, tell me what you think of it.