An old and popular Game of Thrones theory among fans is “R+L=J” which states Jon Snow is actually the son of Rhaegar Targaryen and Ned Stark’s sister Lyanna. However, a similar theory has resurfaced recently courtesy of the Huffington Post. The theory argues that not only is Jon the son of Rhaegar and Lyanna, but that he also has a twin sister, Bran’s traveling companion Meera Reed.
The theory is backed up by plenty of evidence including similarities in age, personality, and physical appearance between Meera, Jon, and Lyanna, but is it true?
Probably not. The biggest piece of evidence against the theory is Meera’s eyes. Like her brother Jojen, Meera is described as having deep green eyes, while both Jon Snow and Lyanna Stark, like most Starks, have grey eyes and Rhaegar Targaryen has traditional Valyrian purple eyes. Knowing what we know about Westerosi genetics (“the seed is strong”), it is extremely unlikely that Meera is Jon’s twin sister.
Want to decide for yourself? Check out Nerdist News with Jessica Chobot for the full Game of Thrones theory: