And while we tend to think that the head rulers have to be called king and queen in a kingdom, that’s not universally true historically (even within europe and accounting for linguistic differences).
Case in point, the husband of the current Queen of England has the titles Prince and Duke, but he’s not a King.
That image of a Prince climbing up Rapunzel’s tower with her hair is SO fairytale. Considering all the twists we get on the stories, it’s cool when we get those kinds of moments that are just straight up classic iconic fairytale.