Jaime was the older brother of Tyrion and the twin brother of Cersei. Their mother died giving birth to Tyrion. Due to his place in the Kingsguard, Jaime could not inherit his father's lands or titles, making Tyrion his father's heir; a fact which vexes Tywin.
Originally Answered: why did not Jamie Lannister become king? The short answer is that the Storm Lords, River Lords, Northmen, and Lords of the Vale would have killed Jaime and anyone who supported him. Robert won a war for the throne, he didn't just kill one guy.
In the hope that Jaime would reach Kings Landing, safe and sound, and tell Tyrion about the oath he made to her about sending Sansa and Arya back in return. She didn't trust Jaime but she was counting on Tyrion to show honour and give her back her girls.
Jaime had vowed to go North and join the gathering forces at Winterfell. His years on the road taught him what concepts like "promises" and "decency," typically foreign to Lannisters, really mean. So, despite Cersei lording their baby over him, Jaime leaves King's Landing.
Tywin Lannister - Why did he not become king? Tywin Lannister served for year as the Hand of the King to the Mad King and was lord to the richest house in Westeros. Still when the Mad King died and King Robert died, Tywin didn't take the opportunity to take the Iron Throne for himself.
12/12 King Aerys II
King Aerys II was the last Targaryen to sit on the Iron Throne (Daenerys came close), and was eventually overthrown by Robert Baratheon and Ned Stark during Robert's Rebellion.
Rhaenyra Targaryen Takes the Iron Throne, but Only For a Moment. While the Green forces were away from King's Landing, they foolishly left the capital sparsely protected. That allowed Rhaenyra and Daemon to easily take the city, where she sat on the Iron Throne for half-a-year.
He truly cares about Brienne, which is why he intends to protect her from Cersei's wrath—and a possible face-off with The Mountain—by making sure she stays behind. Jaime decides to go back upon learning that Euron Greyjoy ambushed Danaerys, killing the second of her dragons.
The Lannister family. Jaime is a Lannister, and it's worth spilling some ink about House Lannister and how they clawed their way to the upper echelons of Westeros. For decades, Tywin Lannister — Cersei, Jaime, and Tyrion's father — was Hand of the King to the “Mad King,” Aerys II Targaryen.
Jaime loves Brienne because she brings out the best in him and makes him feel like a worthy man. You can see in every look, word, and touch how they feel about each other, and yet, each are burdened by emotional baggage.
Then actress Michelle Fairley was recast into the role of Catelyn Stark. She took over for Jennifer Ehle, who had decided to leave the project after reconsidering the lengthy time commitment.
In sum: The showrunners felt the Red Wedding was the most powerful possible finish for Catelyn (and Fairley), and didn't want to play the resurrection card too many times like other shows and movies have done, and were going off insider knowledge of upcoming story lines in Martin's books that conflicted with what they ...
He ask her to find Arya and Sansa and keep her oath to Catelyn Stark, which was to protect her daughters. Jamie kept his oath to Catelyn by equipping Brienne with the necessary weapons to find and protect Arya and Sansa.
Viserys and Alicent go on to have three more children: Helaena, Aemond, and Daeron. After a long and protracted illness, Viserys dies in the eighth episode of House of the Dragon. A misunderstanding on his deathbed means that Alicent pushes to have their son, Aegon, crowned as king after his death.
The individual known as 'The Mad King' is King Aerys II Targaryen. Through his marriage to sister-wife Queen Rhaella Targaryen, Aerys was the father of Queen Daenerys Targaryen (Emilia Clarke) and her older brothers, Crown Prince Rhaegar Targaryen (Wilf Scolding) and Prince Viserys Targaryen (Harry Lloyd).
Mad King Aerys II Targaryen brutally executed Ned Stark's father and older brother, Rickard and Brandon Stark. Jaime Lannister, dressed in Kingsguard white, begged Aerys to surrender, but the Mad King ordered his pyromancer to "burn them all" with hidden wildfire.
The final undisputed monarch of the Seven Kingdoms from House Targaryen, King Aerys II Targaryen is widely known as the "Mad King" who was usurped by King Robert I Baratheon. Aerys II is a direct descendant of King Viserys I Targaryen through his daughter Rhaenyra.
Despite only appearing in flashbacks, King Aerys II Targaryen, a.k.a. The Mad King, loomed large over Game of Thrones. He was cruel and delighted in setting his enemies aflame. One of his own Kingsguard, Jaime Lannister (Nikolaj Coster-Waldau), eventually assassinated him.
In the final season of Game of Thrones, Brienne of Tarth suffered a blow. After she was rightfully knighted by Jaime Lannister, the two finally consummated their relationship — but then he promptly left her to go back to his twin, Cersei, with whom he was in an incestuous relationship, and died in his sister's arms.
“Tell me, if your precious Renly commanded you to kill your own father and stand by while thousands of men, women and children burned alive, would you have done it?” He asked Brienne. “Would you have kept your oath?” Jaime had lived with this shame for 17 years.
Daemon strangled Rhaenyra because he felt betrayed by Viserys. “It's a moment that I think is surprising and shocking for Daemon as a character, but I also think it's one of those things that's been set up over the course of the entire season.
The moment happens in season 3, episode 4, “And Now His Watch Is Ended,” when Joffrey Lannister is chilling with Margaery Tyrell and giddily explains, “Rhaenyra Targaryen was murdered by her brother, or rather, his dragon. It ate her while her son watched. What's left of her is buried in the crypts right down there.”