Earl Spencer has claimed in his upcoming memoir that King Charles III "sounded giddily elated" upon learning of Princess Diana's death. The claim, detailed in explosive excerpts from his book *Swan Song: Diana, My Sister*, suggests the then-Prince of Wales showed no remorse and even appeared to take pleasure in the tragedy. Buckingham Palace has denied the allegations, calling them "baseless."

Spencer, who has long been vocal about his sister's legacy, has previously vowed never to profit from her death. However, he is set to make millions from his memoir, which includes harsh criticisms of the monarchy. The book also features claims that the late Queen Elizabeth II reacted "tetchily" to news of Diana's car crash, further fueling controversy.

In a BBC interview, Spencer defended his claims, insisting he is telling the "truth" about his sister and the royal family. He has also accused the monarchy of a "lack of care" for Prince Harry at Diana's funeral, sharing a seven-word message he allegedly directed to the prince.

The memoir, set to be released soon, has sparked widespread debate about the royal family's public image and private conduct. As the book's release approaches, the monarchy faces renewed scrutiny over its handling of Diana's legacy.