Kingdom Come, Kingdom Gone

Alexandrea Edward never though that her life would end up this way, and it hasn't even happened yet.
Never mind getting stuck in the future, but Alexandrea finds out that she died years before hand. The king knows her, and may possibly be inlove with her, and his entire kingdom is named after her. Everything normal to Alexandrea is gone.
She learns that a world changing civil war occured years earlier, destroying almost everything.
America is gone.
Alexandra took it's place.