More ofQueen Elizabeth’s great-grandchildren have joined the family as they publicly mourn the monarch.

Several of the Queen’s12 great-grandchildrenjoined other members of the British royal family Monday for the committal service at St. George’s Chapel at Windsor Castle.

MikeandZara Tindallwere seen entering the service with their oldest daughter, Mia, 8, as well as Peter Phillips' daughters,Isla, 10, andSavannah, 12.

The family members filed into the somber service, the final leg of public services for the Queen before she is privately buried.

The three children joinedPrince GeorgeandPrincess Charlotte, who have attended events throughout the day. George, 9, and Charlotte, 7, are several years younger than William was when he attended his motherPrincess Diana’s funeral in 1997 at the age of 15. Their brother,Prince Louis, 4, was likely deemed too young to join the rest of the family for Monday’s funeral.

It’s believed that the family at large decided it was not appropriate for the younger set of great-grandchildren — which includesPrince Louis of Walesand Lena Tindall, both 4,Archie Harrison Mountbatten-Windsor, 3,August Philip Hawke Brooksbank, 19 months, Lucas Philip Tindall, 17 months,Lilibet “Lili” Diana Mountbatten-Windsor, 15 months, and Sienna Elizabeth Mapelli Mozzi, who celebrated her 1st birthday yesterday — to participate in the day-long event.

Can’t get enough ofPEOPLE’s Royals coverage?Sign up for our free Royals newsletterto get the latest updates onKate Middleton,Meghan Markleand more!

Ben Birchall/AP/Shutterstock

Mandatory Credit: Photo by Ben Birchall/AP/Shutterstock (13401746ek) Mike and Zara Tindall and daughter Lena Tindall, with Isla Phillips, second left, and and Savannah Phillips, left, arrive for the committal service for Queen Elizabeth II at St. George’s Chapel at Windsor Castle, Windsor, England, . The Queen, who died aged 96 on Sept. 8, will be buried at Windsor alongside her late husband, Prince Philip, who died last year Royals Funeral, London, United Kingdom - 19 Sep 2022

On Friday, some of the great-grandchildren visitedQueen Elizabeth’s coffin during a days-long lying-in-state at Westminster Hall.

As the Queen’s four children — King Charles, Princess Anne, Prince Andrew and Prince Edward — stood around their mother’s coffin, the public quietly filed past, taking in the historic moment. Watching from above were several royal family members, including Queen Camilla, Sophie, Countess of Wessex, Lady Louise, James, Viscount Severn, Sir Timothy Laurence,Princess Eugenieand Jack Brooksbank,Princess Beatriceand Edoardo Mapelli Mozzi and the Duke of Kent.

BBC

The Committal Service For Her Majesty Queen Elizabeth II

David Levenson/Getty

LONDON, ENGLAND - SEPTEMBER 19: The coffin of Queen Elizabeth II is transferred from the gun carriage to the state hearse, at the Wellington Arch, on Hyde Park Corner, watched by King Charles III and other members of the Royal Family. The State Funeral of Queen Elizabeth II took place at Westminster Abbey on September 19, 2022 in London, England. Elizabeth Alexandra Mary Windsor was born in Bruton Street, Mayfair, London on 21 April 1926. She married Prince Philip in 1947 and ascended the throne of the United Kingdom and Commonwealth on 6 February 1952 after the death of her Father, King George VI. Queen Elizabeth II died at Balmoral Castle in Scotland on September 8, 2022, and is succeeded by her eldest son, King Charles III. (Photo by David Levenson/Getty Images)

The Queen will be privately interred atSt. George’s ChapelMonday evening.

She will be buried besidePrince Philip, her husband of 73 years, and near her sister,Princess Margaret, and her parents, King George VI and Queen Elizabeth the Queen Mother.

Dr. Denise Chaffer, President of theRoyal College of Nursing, tells PEOPLE that theservice at Westminster Abbeyon Monday was “incredibly moving and incredibly sad noting that seeingthe family file past was poignant.”

“It was so emotional and moving to see how people were respectful towards them and also understood that they’re grieving fans mourning,” she also said. “It was so moving seeing the children there.”

“It was a coming together, for everybody there, of incredible grief and sadness,” Dr. Chaffer added.

source: people.com