Quote Originally Posted by Tbonewannabe View Post
Do they think Jamie/Cersi are the Mad King's children? I know a lot of people think Tyrion is from things in the books to go along with Tywin's hatred of him. It is also why people thought from the books that he would be the third dragon rider at the time before the Night King killed Viserion.
Yes, that's the irony of Tywin's hatred of Tyrion. The whole theory that Tyrion is the bastard of the Mad King & Joanna Lannister is a red herring. It's really Jaime & Cersei that are bastard Targaeryens - Blackfyres. It's heavily foreshadowed in Cersei's story. Tyrion is the only real Lannister and Tywin's legitimate heir.

The key in GoT/ASOIAF is this line: History doesn't repeat, but it often rhymes. I don't remember the corollary rhyme from the history, but their was a story where a son unknowingly killed his father to save the realm. That's what happened with Jaime & Aerys. Jaime unknowingly slew his father to save King's Landing and the people. Cersei's rhyming story is going to mirror that of Alison Hightower, the Dowager Queen (look it up).