User blog comment:Emilia Da'len/True love/@comment-76.187.156.19-20130612042905

I agree with the 'died during childbirth' theory. And I think her child is none other than Jon Snow!

This would explain why her last words to Ned were 'Promise me Ned' or something to that effect.

It would also explain why we never hear about Ned's mistress. She is a cover to hide that Jon is the child of Lyanna and Rhaegar from Robert and the world.