Jon Snow is the bastard son of Eddard Stark.
That's what he said. But did that really sound in character for him to have a bastard?
On the TV show Stannis and his wife, Selyse, were discussing Jon, and she referred to him as the son of “some tavern slut.” Stannis retorts, “Perhaps. That wasn’t Ned Stark’s way.” Ned would not have dishonored his marriage with Catelyn.