Princess Eugenie was seen discreetly wiping away tears as she joined the royal family at Westminster Hall on Wednesday.
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The Queen's granddaughter was visibly moved as she stood and watched the proceedings alongside her husband Jack Brooksbank.
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She was also flanked by her cousin Zara Tindall, who was joined by her own husband Mike Tindall, as the Queen's period of lying in state began.
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Her older sister, Princess Beatrice, was clearly very emotional, too. She could be seen holding her hand up to her mouth as she watched the service alongside husband Edoardo.
Princess Eugenie was understandably emotional during the ceremony
Dozens of wider members of the royal family stood in two rows at the side of Westminster Hall, including Eugenie and Beatrice, Lady Louise Windsor, Lord Freddie Windsor and Princess Michael of Kent. Louise's younger brother, James, Viscount Severn was also in attendance.
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Eugenie, Beatrice and Zara were joined by their husbands
The senior members of the royal family, meanwhile, stood in formation facing the coffin, which was placed on a purple-covered catafalque, which was flanked with a tall, yellow flickering candle at each corner.
The King and Queen Consort stood together a metre or so apart, with the Princess Royal and Vice Admiral Sir Tim Laurence behind them, then the Duke of York alone, and in the next row the Earl and Countess of Wessex.
The Queen Consort, the Princess of Wales, Sophie Wessex and Duchess Meghan
Behind them were the Prince and Princess of Wales, with the Duke of Sussex behind William, and the Duchess of Sussex directly behind Kate.
Both Kate and Meghan were seen performing a deep curtsey and the royals made their way out of the hall, before getting into cars back to Buckingham Palace.
Lady Louise Windsor with her brother, James, Viscount Severn
The Queen will now lie in state until the day of her funeral on 19 September.
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