For example, are you asking about:
* Charles Dickens? His works are in the public domain, meaning anyone can freely use them.
* Charles Darwin? His works are also in the public domain.
* Charles Schulz? The rights to his "Peanuts" comic strip are owned by Peanuts Worldwide LLC.
* Charles de Gaulle? His writings are likely owned by his estate or descendants.
Provide more information about the "Charles" you are asking about so I can give you an accurate answer.