Prince George and Princess Charlotte will attend the Queen’s state funeral, according to the order of service.
The two eldest children of the Prince and Princess of Wales will be among 2,000 people gathering in Westminster Abbey to say farewell to the monarch they knew as “Gan Gan”.
The second and third in line to the throne will walk in procession behind the Queen’s coffin as it is carried by the military bearer party.
Their grandfather King Charles with the Queen Consort will be immediately behind the coffin, followed by the Princess Royal and Vice Admiral Sir Tim Laurence, then the Duke of York, followed by the Earl and Countess of Wessex, and then the Prince and Princess of Wales.
Nine-year-old George and seven-year-old Charlotte will walk side-by-side behind their parents, followed by their uncle and aunt the Duke and Duchess of Sussex, and other members of the Royal Family.
They are also expected to be at the committal service in St George’s Chapel, Windsor, later in the day.
Their four-year-old brother Prince Louis, however, is not expected to attend.
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Details of the service have been revealed, including the music, which will include the Queen’s Piper, Warrant Officer Class 1 (Pipe Major) Paul Burns, playing the traditional lament Sleep, Dearie, Sleep.
Before the service, the tenor bell will be tolled every minute for 96 minutes, reflecting the years of the Queen’s life.
One of the hymns – The Lord’s My Shepherd, I’ll Not Want – was sung at the Queen’s wedding, when she married the Duke of Edinburgh in the same abbey in 1947.
The others hymns are: The Day Thou Gavest, Lord, Is Ended; and Love Divine, All Loves Excelling.
Prayers will be said by the Reverend Dr Iain Greenshields, Moderator of the General Assembly of the Church of Scotland, for “Queen Elizabeth’s long life and reign, recalling with gratitude her gifts of wisdom, diligence, and service”.
The Bishop of London Dame Sarah Mullally will say a prayer for “our most gracious Sovereign Lord King Charles, Camilla the Queen Consort, William Prince of Wales, and all the Royal Family”.