Earl Spencer to publish first full-length book about Diana, 'Swan Song', in September 2026

Earl Charles Spencer, 62, is to publish his first full-length book about Diana, Princess of Wales. "Swan Song: Diana, My Sister" is scheduled for September 2026 publication by Penguin Random House UK — nearly three decades after Diana's death in August 1997. Spencer has said the book contains "revelations" and aims to tell the truth about Diana from her brother's perspective.