Cheryl

“Princess Diana talking to Prince William about the loss of her title Her Royal Highness: She turned to William in her distress. She (Princess Diana) told me how he had sat with her one night when she was upset over the loss of HRH, put his arms around her and said: Don't worry, Mummy. I will give it back to you one day when I am king.”
― Paul Burrell, A Royal Duty