The Duchess of Cornwall isn't the first person who comes to mind when I hear the name because there are quite a few girls round here called Camilla. However, I wouldn't use it in case anyone did associate it with the Duchess. I don't particularly like her, but I wouldn't waste time and energy building it up into a strong dislike. I'd rather just avoid anything to do with her, and the rest of the royal family for that matter. I much prefer Camila or Kamila pronounced kah-MEE-lah with the nn Mila.