Well in the Prince of Persia film, the main female lead is a sort of priestess, but I don't want your plot to be the film. I was thinking the female still be a queen or part of royalty (though she will be trained in swordmanship and is equally sly, able to fool the dumbest of men to average men). Her decision to flee be changed to sacrificing herself for the rest of the people, hoping her negotiation with Arcturus will provide her enough time to escape him and flee from her city. Also, she would make a proposal to Arcturus: to tell his men to leave while she and Arc (let's call him Archie for short) negotiate terms, mostly regarding Silverhaven, its citizens, and its hidden treasures.
I also looked at Act of Patriotism just now, and I'm kinda interested in that too.