it HAS to be Rhaegar and Lyanna-related — we know it’ll be a bombshell that carries us to the to the final season. The season finale of Game of Thrones will air on Sunday on HBO. More celebs ...

She was engaged to Robert Baratheon, who is pretty open about the fact that he never got over her, revealing how heartbroken he is in Lyanna's tomb below Winterfell in the series premiere.