She didn’t set out to defy anyone. She didn’t burn with ambition, or plot her way to power. She was young. She wanted love. She was raised to trust men to handle the weight of responsibility. And yet, by the time her story was done, she’d held command of one of England’s greatest castles, faced down rebellions, navigated the treachery and ambition of the marriage market, and made choices that shaped the future of a kingdom.