Pages sit behind the king and queen.
While George was the only one of his three siblings to hold official duties, Princess Charlotte, seven, and Prince Louis, five, sat in the congregation.
In the past two coronations, the young heir has just stayed in the congregation. In 1937, at the age of 11, Queen Elizabeth II and then Princess Elizabeth witnessed the coronation of her father, King George VI.
At her own ceremony in 1953, four-year-old Charles sat next to his grandmother, Queen Elizabeth.
A page of honor is a ceremonial position in the royal family that only requires presence on state occasions but does not involve day-to-day duties.
Queen Elizabeth II chose six maids of honor to help carry the trains at her coronation in 1953, all of whom were the unmarried daughters of dukes, marquises and earls.
The decision to give Queen Camilla’s family such a high-profile role is said to represent a new era of equality behind palace walls, reflecting the king’s loyalty to his wife and the realities of modern mixed families.
The 75-year-old queen has five grandchildren who have all nicknamed her “GaGa”.
Her sons, Tom Parker Bowles, have Lola and Freddy, 15, and her daughter, Laura Lopes, has Ellie, 15. Eliza and twins Louis and Gus.
Arthur was the grandson of her older sister, Annabelle Elliott, with whom she was very close.