The Queen's beloved niece appeared mournful in an all-black ensemble as she paid her respects at the late monarch's funeral at Westminster Abbey today.

Lady Sarah Chatto arriving for the State funeral today for Queen Elizabeth II, her aunt.

Lady Sarah Chatto pictured here with her husband Daniel Chatto as they attended the funeral of Queen Elizabeth II.

Lady Sarah Chatto opted for a full black dress coat when she attended the funeral of her beloved aunt, Queen Elizabeth II.

During the state funeral for Queen Elizabeth II Sarah Chatto sat with members of the royal family including the Queen Consort, Princess Royal and Princess Beatrice .

Members of the royal family looked at the Queen's coffin as it lay in Westminster Abbey during the state funeral .

The Queen's coffin was carried into Westminster Abbey.

(front row) King Charles III, the Queen Consort, the Princess Royal, Vice Admiral Sir Tim Laurence, the Duke of York, the Earl of Wessex, the Countess of Wessex, the Prince of Wales, Prince George, the Princess of Wales, Princess Charlotte, Peter Phillips, Zara Tindall, Mike Tindall, (second row) the Duke of Sussex, the Duchess of Sussex, Princess Beatrice, Edoardo Mapelli Mozzi and Lady Louise Windsor, James, Viscount Severn, Jack Brooksbank, Princess Eugenie, Sarah, Duchess of York, the Earl of Snowdon, Viscount Linley and Lady Margarita Armstrong-Jones (third row) Samuel Chatto, Arthur Chatto, Lady Sarah Chatto, Daniel Chatto, the Duke of Gloucester, the Duke of Kent, the Earl and Countess of St Andrews, Edward Windsor Lord Downpatrick, Lady Amelia Windsor and Lady Marina Windsor during the State Funeral at Westminster Abbey.

Samuel and Arthur Chatto pictured at the Queen's state funeral at the Westminster Abbey today. Arthur is training to be an officer for the Royal Marines.

The Queen's 'favourite royal' Lady Sarah Chatto (pictured with her son) made an appearance at the Westminster Hall service for Her Majesty last week.

The Queen has been described as a 'surrogate mother' to the siblings and was particularly close to Lady Sarah, who is understood to remind Her Majesty of her late sister.

The view in Westminster Abbey above the Queen -  where she married and was crowned more than 70 years ago.

The coffin of Queen Elizabeth II with the Imperial State Crown resting on top is carried by the Bearer Party into Westminster Abbey past the grave of the Unknown Soldier.

The Princess of Wales arrives at the Queen's funeral at Westminster Abbey today by car with Prince George, Princess Charlotte and the Queen's Consort 

World leaders including Joe Biden and Emmanuel Macron have arrived at Westminster Abbey as Britain and the world prepares to say goodbye to Queen Elizabeth II at her state funeral today

Princess Alexandra, The Honourable Lady Ogilvy arrives at Westminster Abbey ahead of the state funeral this morning

The Queen's Coffin was today carried from Westminster Hall to the State Gun Carriage, and then positioned outside the building's North Door

President Joe Biden and first lady Jill Biden arrive, on the day of the state funeral and burial of Britain's Queen Elizabeth