‘The truth about Diana’: Charles Spencer to publish book about late sister

Diana and Charles Spencer at a ball in London in 1985. Spencer said his sister had been ‘a one-off, dynamic character, full of love’. Photograph: Tim Graham Photo Library/Getty Images

Charles Spencer is to publish a book about his sister Diana in September.

In the book – titled Swan Song: Diana, My Sister – Spencer recounts the story of Diana’s life and the week of her death. It marks “the first time that Earl Spencer has spoken openly and at length about his sister”, according to the book’s publisher, the Penguin imprint Michael Joseph. The book will be released on 22 September in the UK.