7 Theories That Might Come True on Game of Thrones Season 7

Yes, we know he is her nephew, but there is a good chance this could happen. Game of Thrones has many parallels to the very real War of Roses between the Lancasters (Lannisters) and the Northern Yorks (Starks) over England, and there is a theory that the show will end the way that real war ended. A Lancaster named Henry sailed to get an army in order to take over the throne, then married the eldest daughter of the Yorks and they ruled together. This is highly probable given the A Song of Ice and Fire theory.