Forbidden Attraction

Princess Aspen of England is bound by law to marry a king or prince before her twenty first birthday, or she will lose her throne. As much as Aspen loves her throne, she is not willing to just jump into a marriage and will not pick a husband. In result, her parents arrange her a marriage with King Louis XIV. Aspen hates the idea of having to marry such an arrogant man and repeatedly refuses to do so.
While all of this is happening, behind closed doors a plot is forming to kill King Louis and replace him with the "Man In The Iron Mask", who is Louis' twin brother Phillippe.
When all of the switches are being made behind Aspens' back; her hate for Louis only grows stronger. Soon she begins to notice a change in "Louis", and she starts to fall for him. However, it's not Louis at all.
What will happen when Aspen figures out she fell for Phillipe instead of Louis?
What will happen to her throne, her kingdom?
What will happen to the bond she has made with Phillipe?