Game Of Thrones: 13 Crazy Fan Theories That Could Actually Be True

Cersei: "Will the king and I have children?"
Maggy: "Oh, aye. Six-and-ten for him, and three for you. Gold shall be their crowns and gold their shrouds.

And so it came to pass. Robert had a litany of bastards, and Cersei had Joffrey, Myrcella, and Tommen. In the show, all three have died; in the books, it's only Joffrey, but expect the other two to follow suit at some stage. Which brings us on to the final part of Maggy the Frog's prophecy:

"And when your tears have drowned you, the valonqar shall wrap his hands about your pale white throat and choke the life from you."

Valonqar is High Valyrian for little brother, although the fact this language didn't account for gender means it could well be any younger sibling. Still, there are a few obvious candidates. For Cersei's part, she thinks it's Tyrion, who certainly has motive. Likewise Arya Stark, who now has the means as well. The Hound is another often mentioned, which tied into the Cleganebowl theory.

None, however, are quite as poetic or tragic as the idea of Jamie Lannister killing his twin (and Jaime is the younger of the two).

The two have the most twisted love in Westeros, and it seems fitting that it would end in death. The two have loved each other, hated each other, been apart and back together. Show Jaime isn't quite the nuanced figure that Book Jaime is, with a few poor decisions made along the way, but he is approaching the point he's at in the books (albeit in King's Landing, rather than still in the Riverlands).

Jaime's reputation is tarnished because he is a Kingslayer, and he's had to suffer under that weight all of his life, being the only person to know why he did it. Since it was to stop Aerys burning the entire city, something Cersei has partially done, and his story is all about redemption, he seemed destined to have to repeat his past.