The cat's officially out of the bag, so to speak, when it comes to Jon Snow's true lineage, but in order for the secret to live on, some key Game of Thrones players will have to survive the Last War. In the season six finale, the show confirmed what fans long theorized to be true: that Jon Snow is a Targaryen, the son of Lyanna Stark and Rhaegar Targaryen. That presents, er, quite a few complications, particularly when it comes to Jon's relationship with Daenerys (aka his aunt) as well as her claim to the throne — a claim that (surprise, Dany!) actually belongs to Jon Snow.
Only a handful of people know about Jon's identity, though, so as a Reddit user pointed out, at least one of them would have to survive for the truth about his lineage to live on. Considering how fast-and-loose this season has played it with the deaths, it's fair to be concerned that Jon's secret might die with several characters. Or worse, it'll die with the man himself. Keep reading for a refresher on who, exactly, is clued in — or might be — then prepare yourself for the episode that Emilia Clarke called "bigger" than what's come before .