A lot of people would think they were honoring Mummy Boleyn 2.0, not Charles, if they went with Caroline. I personally (and I know others as well) have never heard of Carol/Caroline being a feminized version of Charles. Better to go with Charlotte than create confusion and upset.
Well, Caroline is indeed a feminine version derived of Charles, or Carl, as is Charlotte, Carole, Carla etc. I have certainly always thought of it as such.
Yes, you are right. Think of the very famous king Charlemagne (basically an ancestor to everyone who has ancestors in Central Europe) aka Charles the Great, Carolus or Karolus Magnus, Charles Le Grand or Charlemagne, Karl der Große or Carlo Magno or Carlomagno. The name 'karl' and all its variants mean the same thing; 'man' (http://en.wikipedia.org/wiki/Charles
). In a way the female forms are a bit funny considering the original meaning but then again, there are a lot of similar names (like Andrew and all its variants, derived from Greek Andreas, ancient Greek aner/andros, "man", thus meaning "manly" and, as consequence, "strong", "courageous", and "warrior").
Here's the feminine variants: http://en.wikipedia.org/w...es#Derived_feminine_names
She could as easily be named after grandpa Chuck as grandma Carole.