In his new book, Prince Harry revealed his mother’s former butler made his “blood boil” by releasing a book about her called A Royal Duty.
The British royal tragically died in a car crash in Paris, France on 31 August 1997.
The British actress portrayed the monarch in the 2006 biographical drama which delved into the death of Diana, Princess of Wales in 1997.
To mark the 70th anniversary of her accession to the throne in 1952 on Sunday, the British monarch issued a statement in which she reflected on her reign and renewed her pledge to “always be devoted” to public service.
The Duke of Sussex has landed a publishing deal with Penguin Random House executives to release his autobiography in late 2022.
William and Harry were joined at the event by Diana’s siblings – Earl Spencer, Lady Sarah McCorquodale, and Lady Jane Fellowes.
The Sussexes stepped down as senior members of the monarchy and relocated to California in early 2020.
The British royals welcomed their second child on 4 June.