User blog comment:Emilia Da'len/True love/@comment-10385544-20130617135518

Ned and Robert discuss Jon Snow's mother in season 1 during a rest stop on the King's Road. Ned Stark mentions her first name. I would need to watch the episode again to be sure, but I think he said her name was Alys or Wyssa.

Someone suggested that Lyanna Stark could be Jon Snow's mother, which would mean Ned Stark committed incest with his sister. I would consider that possibly highly unlikely for the honorable Ned Stark.

How did Lyanna Stark die? I think that may have been revealed when King Robert went to visit the tomb underneath Winterfell when he first arrived. Ned and Robert visited Lyanna's crypt, whre he expressed outrage at the Targaryens for killing her.