No, not quite. You've got one out of the two correct (so close!) - Cinderella's prince is "Prince Charming", but Snow White's prince is unnamed. Do you know the other one?
Perhaps I should give a hint: This princess' prince DOES have a name sometime in the movie, but when true love prevails, he can no longer be called by his name because now he's human and not a trecherous creature.
Yup!
Belle prince's name is "Beast" when he's a beast, but when he reverts to human form he is unnamed. Rumors have been spread that his name may be Vincent or Adam, but Disney has neither confirmed or denied both names. So Snow White and Belle are the correct answers.