Prince George joined his younger sister Princess Charlotte to pay his respects to his great-grandmother today at the Queen's state funeral. George attended the late monarch's state funeral at Westminster Abbey with his parents the Prince and Princess of Wales., where he sat next to his dad to mourn the loss of his beloved "Gan Gan" Queen Elizabeth.
The Prince travelled by car with his mother Kate Middleton, sister Princess Charlotte and Queen Consort Camilla to Westminster Abbey, while his father, Prince William, joined the Duke of Sussex and his father King Charles to walk behind the Queen's coffin, carried on a State Gun Carriage by 98 Royal Navy sailors.
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At the emotional service, the young Prince George walked silently behind his great-grandmother's coffin alongside his parents and younger sister Charlotte.
A body language expert has said that the nine-year-old prince looked 'heartbreakingly sad' and showed 'concern' for his dad Prince William during the historic procession, where he sat solemnly next to his father.
Judi James told The Sun : “Prince George walked beside his father and, despite some glances thrown from William down to his son, George’s upright posture suggested he needed little in the way of reassurance and it was the expression he threw up at his father that looked more like a warm smile of concern to check he was ok".
"George also mimicked some of his father’s body language, checking and smoothing his suit jacket like a grown-up.
"His eye expression as they followed the coffin in looked heart-breakingly sad and he was seen to wipe at his eyes during the start of the service but there were no signs that he prompted any expressions of concern from William."
Prince George wasn't the only young royal who mimicked his parents' body language, as royal fans spotted that Princess Charlotte sweetly copied her mother when she tipped her hat during the funeral procession.
Princess Charlotte was also seen reminding her brother George of royal protocol while stood next to their great-grandmother's coffin, as she told him to bow during the procession.
Kate and William's children were the youngest mourners attend the late monarch's state funeral today, as they walked bravely behind the Queen's coffin.
Prince George is dressed in a dark blue suit for the occasion, while Princess Charlotte is wearing a navy mourning coat, a hat and a diamond pin in the shape of a horseshoe.
The young siblings joined 2,000 people at the state funeral, which was full of poignant hymns and readings that the Queen herself had a part in planning.
The Queen's coffin is now travelling to Windsor Castle where a second procession will take place with a smaller congregation of 800 people.
The Prince and Princess of Wales' youngest son, Prince Louis, stayed at home, but Kate and William decided that Charlotte and George should attend as they thought it was important for them to be part of the historic occasion.