The Queen’s name has been inscribed alongside the Duke of Edinburgh's and her parents' on the ledger stone in the Windsor chapel where she was laid to rest.
The late monarch was buried beside her "strength and stay" Prince Philip in St George's Chapel on Monday evening in a private family service after the public splendour of her state funeral.
The inscription on the ledger stone in the George VI Memorial Chapel now has the names of the Queen, her mother, Elizabeth, the late Queen Mother and her father, George VI, and Prince Philip, along with their years of birth and death, Buckingham Palace said.
The new stone replaces the black stone slab set into the floor which had featured the names George VI and Elizabeth - the Queen's parents - in gold lettering.
The fresh stone now contains, in list form, “George VI 1895-1952” and “Elizabeth 1900-2002” followed by a metal Garter Star, and then “Elizabeth II 1926-2022” and “Philip 1921-2021”.
All four royals were members of the Order of the Garter, which has St George’s Chapel as its spiritual home.
The Queen’s sister Princess Margaret, who died in 2002, was cremated and her ashes were initially placed in the Royal Vault, before being moved to the George VI memorial chapel with her parents’ coffins when the Queen Mother died weeks later.
When Philip died 17 months ago, his coffin was interred in the Royal Vault of St George’s, ready to be moved to the memorial chapel – a pale stone annexe added on to the north side of the building behind the North Quire Aisle in 1969 – when the Queen died.
After a day of military spectacle and the Queen's final journey from London to Windsor, and a committal service, the King and the royal family said one last, private, goodbye at 7.30pm.
Windsor Castle is currently closed to the public and will reopen on September 29.
Charles is believed to have flown to Scotland on Tuesday with the Queen Consort to grieve privately, as the royal family continues its period of mourning for the Queen.
He and Camilla were pictured in a vehicle which arrived at RAF Northolt, reportedly bound for Balmoral – the estate on which the King’s Scottish home of Birkhall is located.
Charles decreed on September 9, the day after the Queen died following her 70-year reign, that a period of mourning would be observed until seven days after the funeral.
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Members of the royal family are not expected to carry out official engagements, and flags at royal residences will remain at half-mast until 8am after the final day of royal mourning.
King Charles had travelled extensively in the days after his mother’s death, as he toured the UK in his role as the nation’s new monarch.
In a reflection of the outpouring of love and grief since the Queen’s death, it is estimated that around a quarter of a million people paid their respects in person by viewing her coffin as it lay in state in London.
Culture Secretary Michelle Donelan said on Tuesday that her department was still “crunching the numbers” as to how many people had queued for hours to process past the coffin at Westminster Hall, but that she believed it was around 250,000.
The Department for Digital, Culture, Media and Sport said it would set out the final number “in due course”.