The Duchess of Cornwall is a title held by the wife of the heir apparent to the British throne. The Duchess of Cornwall is usually also the Princess of Wales, and she uses that title. The current title-holder is Catherine, whose husband, Prince William, became the Duke of Cornwall on 8 September 2022, upon the death of his grandmother Queen Elizabeth II. Previously, Catherine's stepmother-in-law, Queen Camilla, was known by this title.