After the very public state funeral at Westminster Abbey, and a televised committal service at Windsor, the final ceremony of the day will be a much smaller affair, away from the glare of TV cameras.
The service will give members of the Royal Family a final chance to day goodbye to the 96-year-old who died at Balmoral on September 8.
Her Majesty will be buried alongside some of her closest relatives.
Where will the Queen be buried?
After the funeral service at Westminster Abbey, the Queen's coffin will be taken to St George's Chapel, Windsor Castle where a committal service will be held at 4pm.
The service will be televised, and viewers will see the coffin lowered into the Royal Vault.
After that, a burial service will be held away from the cameras at 7.30pm.
A senior palace official said the burial will "be entirely private, given it is a deeply personal family occasion". The service will be conducted by the Dean of Windsor with King Charles III, the Queen Consort, the Queen’s children, the Prince and Princess of Wales and other members of the royal family present.
The Queen will be buried within the King George VI Memorial Chapel, named after her father who died in 1952.
She will join her father and Queen Elizabeth the Queen Mother, who died 20 years ago, as well her sister Princess Margaret, who had her ashes placed in the chapel after her death in 2002.
The princess wanted to be cremated because she found the alternative royal burial ground at Frogmore in Windsor Great Park too “gloomy”.
Lady Glenconner, a lifelong friend of the princess, said in 2002 that the princess preferred the memorial chapel.
“She told me that she found Frogmore very gloomy,” Lady Glenconner said. “I think she’d like to be with the late King, which she will now be. There’s room I think for her to be with him now.”
Prince Philip, who died in 2021, will also be in the Memorial Chapel. Currently his coffin rests in the Royal Vault, but will be exhumed and moved to be with the Queen.
The central feature of the pale stone memorial chapel annexe, which was added on to the north side of St George’s behind the North Quire Aisle in 1969, is a black stone slab set into the floor. It is inscribed with “George VI” and “Elizabeth” in gold lettering and accompanied by their years of birth and death.
Who else is buried at Windsor Castle?
Numerous other Kings and Queens are buried at various locations around. St George's Chapel.
Windsor Castle - Quire
King Henry VIII (died 1547)
Jane Seymour, third wife of Henry VIII (died 1537)
King Charles I (died 1649)
Infant child of Queen Anne (died 1696)
Windsor Castle - Royal Vault
Princess Amelia, daughter of George III (died 1810)
Princess Augusta, Duchess of Brunswick, sister of George III (died 1813)
Stillborn son of Princess Charlotte(died 1817)
Princess Charlotte, daughter of George IV (died 1817)
Queen Charlotte, wife of George III (died 1818)
Prince Edward, Duke of Kent, father of Queen Victoria (died 1820)
King George III (died 1820)
Prince Alfred, son of George III (died 1782, placed in vault 1820)
Prince Octavius, son of George III (died 1783, placed in vault 1820)
Princess Elizabeth, daughter of William IV (died 1821)
Prince Frederick, Duke of York (died 1827)
King George IV (died 1830)
Stillborn daughter of Prince Ernest Augustus, son of George III (died 1818)
King William IV (died 1837)
Princess Sophia, daughter of George III (died 1840)
Queen Adelaide, wife of William IV (died 1849)
Prince Frederick of Schleswig-Holstein, son of Princess Christian (died 1876)
King George V of Hanover (died 1878)
Victoria von Pawel Rammingen, daughter of Princess Frederica of Hanover (died 1881)
Princess Mary Adelaide, Duchess of Teck, mother of Queen Mary (died 1897)
Prince Francis, Duke of Teck, father of Queen Mary (died 1900)
Princess Frederika of Hanover (died 1926)
Prince Adolphus, Duke of Cambridge, grandfather of Queen Mary (died 1850, placed in vault 1930)
Princess Augusta, Duchess of Cambridge, grandmother of Queen Mary (died 1889, placed in vault 1930)
HRH Prince Philip, The Duke of Edinburgh (died 2021, will be moved to King George VI Memorial Chapel)
St George's Chapel - North Quire aisle
King Edward IV (died 1483)
Queen Elizabeth Woodville (died 1492)
Princess Louise, Duchess of Saxe-Weimar, niece of Queen Adelaide (died 1832)
St George's Chapel - South Quire Aisle
King Henry VI (died 1471)
King Edward VII (died 1910)
Queen Alexandra (died 1925)
St George's Chapel - The Gloucester Vault
Prince William, Duke of Gloucester (died 1805)
Princess Maria, Duchess of Gloucester (died 1807)
Prince William, Duke of Gloucester (died 1834)
Princess Sophia of Gloucester (died 1844)
Princess Mary, Duchess of Gloucester (died 1857)
St George's Chapel - North Nave Aisle
King George V (died 1936, placed there 1939)
Queen Mary (died 1953)