Ready for another Game of Thrones conspiracy theory? An oldie has resurfaced and it looks possible.

Buckle in, “Game of Thrones” fans, there’s a new fan theory circulating online, and this one might throw you for a loop. It starts with an older theory, one that claims Ned Stark is not Jon Snow’s real father. Known as R + L = J, the conjecture states that Jon is the love-child of Prince Rhaegar Targaryen and Lyanna Stark, Ned’s sister. Book readers began discussing this idea online as far back as 2006, as evidenced from this thread. The evidence for this is aplenty, as you can see in many posts around the web. If this reveal — which would mean that Jon is heir to the Iron Throne and Daenerys Targaryen’s nephew — isn’t enough to blow your mind, now there’s a new twist:

Source: ‘GoT’ theory: Jon Snow could be a twin – Tech Insider