Queen Elizabeth II and Princess Diana: Echoes of royal past as Prince William and Prince Harry mourn

Prince Harry and Prince William have come together several times in the wake of their grandmother, Queen Elizabeth II's, death to honor the late monarch in a series of public and private ceremonies. The state funeral procession for Her Majesty on Monday called upon the memory of another significant royal's death — the siblings' mother, the late Princess Diana. ET spoke with royal biographer Andrew Morton at Methodist Central Hall Westminster in England on Monday and discussed Harry and William's notorious rift, and how he feels their mother would react. «Well, the one thing that she would be really furious about is that they had this split,» Morton began, explaining that he had previously discussed the boys' relationship with Diana herself. «She always said to me, not just once, but on several occasions, that Harry is William's backup in the nicest possible way, he's his wingman, he's the one who helps William in this difficult job that he will have in the future because it's a lonely job.

A final goodbye. Princess Anne wore her ceremonial military uniform at the funeral of her late mother, Queen Elizabeth II.

Princess Beatrice and Edoardo Mapelli Mozzi joined the royal family to pay their respects to Queen Elizabeth II at the late monarch’s state funeral on Monday, September 19.

Mourning his mother. King Charles III paid his final respects to Queen Elizabeth II at her funeral on Monday, September 19.

Queen Elizabeth II's funeral on Monday, Prince Harry arrived wearing his morning suit and military medals. He then processed behind his grandmother's coffin as it moved from Westminster Hall to Westminster Abbey for her State Funeral service. As has been an ongoing conversation throughout the official events surrounding the queen's funeral, the Duke of Sussex was not permitted to wear his military uniform to the State Funeral on Monday at Westminster Abbey.His father, King Charles III, and older brother, Prince William, were both seen in their uniforms.

King Charles III and other members of the royal family marched behind Queen Elizabeth II‘s coffin as the Royal Navy transported her to Westminster Abbey ahead of her funeral.

Thania Garcia Although the royal family has yet to confirm the official list of attendees for Queen Elizabeth II’s funeral, various heads of state have already confirmed their planned attendance at the Westminster Abbey ceremony scheduled for Monday, Sept. 19. Buckingham Palace revealed the full schedule of the funeral plans — which will begin in London and end in Windsor — including the several categories of dignitaries invited: global government representatives, foreign royal families, governors general, realm prime ministers and heads of state. President Joe Biden and First Lady Jill Biden will be present, along with all of the heads of the Commonwealth including Canadian Prime Minister Justin Trudeau, Indian President Droupadi Murmu and South African President Cyril Ramaphosa. Joining them will be President of the European Commission Ursula von der Leyen, French President Emmanuel Macron, Ukraine’s First Lady Olena Zelenska and the presidents of Austria, Finland, Germany, Hungary, Ireland, Italy and Poland, among other representatives.

Prince William has reassured mourners The Queen's corgis are being looked after "very well" in the wake of her death. The late monarch - who died aged 96 on September 8 - has two corgis left, Sandy and Muick, after her beloved dorgi (dachshund-corgi cross) passed away aged 18, just months before she passed away. And the Prince of Wales told those queuing in Lambeth, south London to see the queen's coffin lying in state at Westminster Hall that the monarch's canine companions have a "good home".

The youngest of the family. Queen Elizabeth II was a doting grandmother to eight grandchildren, a circle that was rounded out in 2003 and 2007 with Lady Louise Windsor and James, Viscount Severn, respectively.

Princess Beatrice and Princess Eugenie are breaking their silence about Queen Elizabeth II’s death.

Queen Elizabeth II's grandchildren paid her a touching tribute on Saturday. Prince Harry and Prince William were decked out in their full military uniforms, at the request of their father, King Charles III, alongside their cousins, standing vigil at their grandmother's coffin in Westminster Hall for 15 minutes of silence.

Queen Elizabeth II's planned funeral. The body of the late British monarch is currently lying-in-state at Westminster Hall as members of the public are queuing up for hours for a chance to see Her Majesty's coffin before Monday's funeral. But two dramatic instances have taken place amid the events surrounding the queen's death.

Prince Harry turned 38 on Thursday but don't expect the Duke of Sussex to commemorate the occasion publicly, if at all, following Queen Elizabeth II's death.A source close to the royal family tells ET that the family is in a one-month period of mourning and Harry is not expected to do anything to mark the day, except spend it privately. Her Majesty died one week before Harry's birthday, and since then a number of events have taken place and will continue taking place, culminating with Elizabeth's state funeral scheduled for Monday at 6 a.m.

As Prince William and Princess Kate continue to mourn the late Queen Elizabeth II ahead of her state funeral, the couple emotionally made a public appearance at Sandringham Estate.

Prince William was seen sweetly comforting wife Kate Middleton as they left a service at Westminster Hall following the Queen's coffin procession through central London on Wednesday afternoon. The coffin of the late Queen Elizabeth II, who died on 8 September, was moved from Buckingham Palace at the highly significant time of 2.22pm to Westminster Hall where it will lie-in-state for members of the public to pay their respects until Monday 19 September, the day of the late monarch's funeral.

A sartorial tribute. Meghan Markle honored the late Queen Elizabeth II with her jewelry choices while attending the royal family’s Westminster Hall service.

It’s an emotional day for the royal family. Queen Elizabeth II’s coffin was taken from Buckingham Palace on Wednesday and a procession including King Charles III, Prince William, Prince Harry, Princess Anne, Prince Andrew, and Prince Edward took to the streets of London to bring it to Westminster Hall.

Wow. Prince William and Prince Harry are really trying to prove they are a united front following Queen Elizabeth II’s death.

Queen Elizabeth II‘s coffin arrived at Westminster Hall on Wednesday, September 14, and her lying in state has officially begun.

A moving echo of the past. Prince William and Prince Harry united behind Queen Elizabeth II‘s coffin almost 25 years to the day after Princess Diana‘s funeral.