A body language has said Prince William and Harry stood out at as the brothers were united in grief at the Queen's vigil.
William and Harry, dressed in military uniforms, joined their cousins for a 15 minute moment of reflection at Westminster Hall yesterday evening.
As Her Majesty's grandchildren stood silently to pay their respects, it was the famous duo who caught the eye as they walked apart from one another, an expert has claimed.
They filed into the hall in pairs with Harry following his older brother who led his younger sibling, as well as Princesses Beatrice and Eugenie, Zara Tindall and Peter Phillips, as well as the young Lady Louise Windsor and James, Viscount Severn.
Body language expert Judi James said stone-faced Harry gave "nothing away emotionally", the Sun reports.
She added: "William and Harry were the only siblings to not walk side by side.
"They arrived with William walking first and Harry behind him as the others all paired off.
"Unlike the other grandchildren, William and Harry had the small comfort of the peaks of their hats hiding most of their faces."
She said Harry's mouth was " clamped in a straight line" and he "gave nothing away emotionally".
Judi praised the grandchildren for a "united act of unbelievable self control" as they paid respect to their much-loved grandmother, claiming they all "drew strength" from one another as they surrounded the coffin.
She added that they "adopted their pose it was difficult to even spot them breathing".
And Judi said she had spotted "an air of determination that suggested they were all drawing strength from one another to complete this gesture for their grandmother".
Lady Louise Windsor also caught the attention of many with a subtle and heart-warming nod to her late grandmother and grandfather.
The 18-year-old was spotted wearing a horse pendant to Her Majesty's vigil - a nod to her horse-loving grandparents.
