Gavinmad
Mr. Poopybutthole
Why would Robert have him killed? If anything, Robert would likely have acknowledged him, and kept him in King's Landing as a cherished memory of Lyanna. Maybe even made him his heir. Now maybe Ned would have been pleased for all the trouble Jon's acknowledgement would have caused for the Lannisters, but I could also see him deciding it was better for the realm as a whole if there wasn't a majorly divisive issue between the Baratheons and Lannisters, even if it meant letting the Lannisters basically get away with the sack of King's Landing and the murder of the Targaryen children.There also isn't any real overriding reason for Ned to have gone to such lengths to hide the parentage if Jon is Robert and Lyanna's son. Knowing Robert would likely have had him killed and Ned's disdain for violence against children, even done in Robert's name and interest, is more than enough reason.
Maybe, maybe not. I think he probably would have wanted to but I don't see Ned ever allowing that if he had Jon already in his keeping, which would have meant the North rising in rebellion yet again.No, I'm not saying that. I don't think he would either. I'm saying he would have if Jon was Rhaegar's.