His parentage hasn't been revealed. There's a very strong clue supporting that theory in the show. In S2E10 when Daenerys enters the House of the Dying, she opens a door that leads to The Wall where Jon Snow is serving as a brother of the NW. The clue is that there's a blue flower (kool keith?) growing out of a crack in the wall.
Check out this page if you want to read up on that and other theories. There are a few spoilers from the first three books
I'm midway through the second book. I'm looking forward to more clues



Gonna be 10 long months!
moments across all 3 seasons were the episode prior to the last one of the season.
no love for Jon Snow, Dany and Tyrion?
just something about Dany that rubs me the wrong way. bytch ain't right in the head brehs I'm telling you. Watch out for that ho.
