I really want to like this, but every single time the prince/the prince's faction brings up the Cloyan Kingdom, I think to myself how stupid this all is. They specifically said they don't know if she's alive or dead. They specifically said they have no idea what she looks like and that the only portrait of her burned. Are they going up to random people in the Cloyan region and asking "ARE YOU THE PRINCESS? ARE YOU THE PRINCESS?! ARE YOU THE PRINCESS?!?!" For all that they know, the princess died in a ditch in the middle of the woods and her corpse was eaten by the wildlife. They literally would never know unless Marie herself tells them.
End rant. Separately, why is she telling everyone she's a war prisoner? She used it as cover with the prince in order to explain her noble skill set despite her unknown background. Unless I'm misremembering, the prince said he would keep it a secret. Why spill it to this random person you've literally never spoken to in your life? Marie could've easily said commoner right here. Did she "reveal" it because the prince would protect her? Even if true, that makes no sense. And yes, she's revealing it to basically everyone now. There are multiple maids with Ariel. The maids talk.
If there's no good reason for that, then this is just getting double stupid.