In 297 AC, Serena was the King's Bastard, the Lady Snow, who most of Westeros pretended not to remember. All she wanted was a place to call her own. By 304 AC, she's the Princess-Regent of the North, the White Wolf, Lady of the North, the Dragon Lady, and the Hero of the North. Now, all she wants is for the war to end. As always, it doesn't work as she expected.
"Not since the times of Good Queen Alysanne did Westeros witness such an influential Queen Consort, as controversial as she was beloved, Queen Alyssa contributes to Westeros are still seen centuries long after she laid to rest in Winterfell." A story where Robb marries a Frey girl. It's just the one most people would expect.
Despite being Tywin Lannister's eldest child, all expected Myrcella to be overshadowed by her other siblings ... until the newly crowned king picked her as his queen.