A congregation of 800 people, including the king, the royal family, the kingdom’s prime ministers and governors-general, will meet in the Gothic church on Monday.
They will be joined by mourners from the late monarch’s household past and present, including personal staff from her private estates.
The service will take place at 4 p.m., hours after the state funeral at Westminster Abbey.
Queen Elizabeth II’s coffin will be driven from London to Windsor in the state hearse and up the Long Walk, which will be lined with members of the armed forces.
The King and other members of the Royal Family will join the procession on foot behind the hearse in the quadrangle of the castle.
Queen Consort Camilla, Kate, Princess of Wales, Meghan, Duchess of Sussex and Sophie, Countess of Wessex will follow in car.
Prince George and Princess Charlotte will be at the service after attending the state funeral at Westminster Abbey.
During the service, which will be led by Dean of Windsor David Conner, the Imperial State Crown, Orb and Scepter will be lifted from the late monarch’s coffin by the Crown Jeweller, separating Her Majesty from her Crown to the last time.
With the help of the bargemaster and a sergeant-at-arms, the crown jewels will be handed over to the dean who will place them on the high altar.
At the end of the last hymn, the King will step forward and place the camp color of the Queen’s Company of the Grenadier Guards – a smaller version of the regiment’s Royal Standard – on the coffin.
The Grenadier Guards are the oldest of the Foot Guards regiments and the Queen was their Colonel-in-Chief.
Only one Royal Regimental Standard is presented during a monarch’s reign, and it served as the Queen’s company color throughout her lifetime.
Queen Elizabeth II’s state funeral service order revealed in full
At the same time, former MI5 spy chief Baron Parker – the Lord Chamberlain and the highest official in the late Queen’s royal household – will “break” his wand and place it on the coffin.
The ceremonial breaking of the White Rod signifies the end of his service to the Queen as Sovereign.
As the coffin is lowered into the Royal Vault, the Dean will say a Psalm and the Commendation before the Garter King of Arms pronounces the Queen’s many styles and titles.
The Sovereign’s Pied Piper will play a lament from the doorway between the Chapel and the Dean’s Cloister and slowly walk away so that the music gradually fades.
The Archbishop of Canterbury will pronounce the blessing and God Save The King will be sung.
The King and members of the Royal Family will leave through the Galilee Porch, but will return for a private funeral service in the evening, when Queen Elizabeth II will be buried alongside her late husband, the Duke of Edinburgh, in the chapel Memorial to King George VI in St. George’s.
A burial service is perhaps the most solemn moment of a Church of England funeral service, and it usually takes place in the cemetery, in a crematorium chapel or in the church before a burial or funeral. cremation.
The majority of those present at St. George’s Chapel will not have attended the Westminster Abbey funeral.
Many household and private estate staff spent years working for and supporting the late monarch, with the depot service having the opportunity to pay their last respects.
Prayers will be said by the Rector of Sandringham, the Minister of Crathie Kirk, the Chaplain of Windsor Great Park and the Dean of Windsor.
The State Hearse will approach the castle through Shaw Farm Gate on Albert Road in Windsor, via Long Walk, Cambridge Gate, Cambridge Drive, George IV Gate, Quadrangle (south and west sides), Engine Court, Norman Arch, Chapel Hill, Parade Ground and horseshoe cloister arch.
Leading the procession and in front of the coffin will be a foot detachment from the Household Cavalry Regiment, followed by a mounted division of the Sovereign’s Escort, a Pipes and Drums Band from the Scottish and Irish Regiments, bands of the Coldstream Guards and family. Cavalry, Household Division Officers, Kings, Heralds and Pursuers-at-Arms and Queen Elizabeth II’s personal staff.
In the center of the procession, the hearse will be flanked by the cloth bearers and an escort made up of two officers and 24 troops from the 1st Battalion Grenadier Guards.
The Color of the Queen’s Company, the Royal Standard of the Regiment of Grenadier Guards and the Sovereign’s Standard of the Household Cavalry will be placed fore and aft of the hearse.
At the rear of the coffin will be members of the Royal Households, followed by other mounted and dismounted detachments of the Household Cavalry.
Minute Guns will be fired by the King’s Troop, Royal Horse Artillery from a position on the East Lawn as the coffin moves in procession from Shaw Farm Gate to the West Steps of St George’s.
The bell of Sevastopol – captured in Crimea in 1856 – and the bell of the curfew tower will ring simultaneously at the castle.