Prince William speaks out for the first time shortly after King Charles' cancer diagnosis. King Charles III.

(75) is suffering from cancer. Further details about the serious illness are being kept under wraps to date. It is not even known what type of cancer the monarch has. His son, Prince William (41), was also asked about his health at an event. Despite Charles' Cancer diagnosis, Kate is Prince William's top priority. Prince Harry is on his way back to the USA after a quick visit to King Charles.