After seven long seasons, it was confirmed that Ned’s sister is Jon Snow’s mom, who secretly married Rhaegar Targaryen. Ned covered it up so his buddy and liege, Robert Baratheon, who was obsessed with Lyanna, wouldn’t kill the child. Ned took Jon back to Winterfell to raise him as his bastard much to the hatred of his wife, Catelyn.
If Rhaegar and Lyanna are Jon’s parents, the resurrected Jon is not only legitimate, he’s got some regal blood running through his reanimated veins. As he kicks rocks on the Night’s Watch, one can only hope he’ll make his way to Dany and Tyrion (who are probably his relatives) and ride Rhaegal, the dragon named after his possible pops.
Which of these Lyanna Stark theories makes the most sense? Ponder some popular Lyanna Stark-y fan theories - perhaps they'll inspire a theory of your own!
Fans think there was way more substance to Lyanna and that she wasn’t in love with Rhaegar, or anyone for that matter. She had a future as a leader and circumstances beyond her control - or fate - killed that future.
That's probably where the parallels end. Fun coincidence, though: in the Rhiannon legend, the kid disappears while in the care of his six sleepy maids, while in GoT Ned rides with six companions to the Tower of Joy. Rhiannon also wakes up in a pool of blood (from a slain puppy), while Lyanna lies in a pool of her own blood (presumably). Rhiannon is also often associated with Epona, which, you guessed it, is a Roman divinity associated with horses and/or a horse in Ocarina of Time. It would then completely make sense for the show to emphasize Lyanna's abilities on a horse ('stop showing off!’).”
Since the books and the series haven’t filled in this blank, fans are left to speculate on whether Lyanna knew about Aerys brutally torturing and murdering her father and brother and the spiraling war surrounding her abduction.
Some say absolutely. Others are not so sure. Either Rhaegar abducted her and raped her to fulfill a prophecy of Ice and Fire, or they simply fell in love and were horrified at the consequences of their union. Or she was horrified and he didn’t care. OR, once Jon was born, that’s all that mattered to Rhaegar.
Even as we learn that Jon is indeed Lyanna's child, we don't quite hear what she tells Ned.
Was the promise simply that Ned protect Jon from Robert's wrath? Or was there something else she asked of her brother?