I'd like to weigh in on the issue of learning a foreign language, as I do have experience with this.
Each individual is different, some naturally have an
innate ability to pick up languages quickly, while others not so much. The learning curve will vary with each pupil. Therefore, I give everybody the benefit of the doubt, including Miss Wittstock. For all we know, she does know basic French, having picked it up the last 4 years while staying in Monaco. She just doesn't feel comfortable enough holding a conversation in French, *yet*.
That said, if she or one of her cronies, et al is reading, I advise speaking it as much as possible. Like the old saying goes "practice makes perfect", and the only way to become fairly fluent in another language is to practice, Practice, PRACTICE!
Make her fiance speak to her only in French, immerse herself in the community daily, watch only French-speaking channels, etc. etc. etc.
If she does what I describe above, I
guarantee Miss Wittstock will at least be able to hold a conversation in French within the year. Yes, it's a lonely process at first, feeling like a baby, taking baby steps at first, but before you know it you're running/flying!
And most importantly the people of Monaco will appreciate Charlene's effort(s).
Of course she will make mistakes at the beginning, that's only natural, and they will see that, but the most important thing is that she will be speaking to her people in their language. So speak up, Charlene, speak up! Language is
key.
ps: don't worry about all the criticisms, et al, practically every new member of the princely/royal families goes through it, similar to college hazing/initiation rituals. C'est la vie...