Photo:Victoria Jones/PA Images via Getty

Victoria Jones/PA Images via Getty
King Charleshas come a long way since his firstTrooping the Colour.
In honor of the newly crowned monarch’s first Trooping the Colour as king, the Royal Collection Trust shared a photograph of Charles, 74, as a young child, making his first appearance at the annual public event held to celebrate England’s monarch.
In theblack and white photofrom 1951, a young Charles can be seen sitting between his aunt,Princess Margaret, and his grandmother, Queen Elizabeth, in a carriage on its way back to Buckingham Palace.
Charles appears to wear a light-colored button-down jacket with a collar, while his grandmother is seen in a feather-rimmed jacket with a matching feathered hat, smiling at the camera.Princess Margaret, meanwhile, was captured wearing a button-down V-shaped jacket with a light-colored sun hat, while looking off to the side.
That Trooping of the Colour was held to celebrate Charles' grandfather, King George VI, who died just a year later. King Charles' mother, Queen Elizabeth II,took part in the ceremony in his steadas he was ill, per the Royal Collection Trust.
During Saturday’s celebrations for Charles, the royal rode in the parade through London on a horse called Noble, sporting the traditional bearskin cap and the tunic of the Guard of Honour Order, the Welsh Guards.
His participation in the parade marked thefirst time since 1986that the British monarch rode in the procession on horseback. Queen Elizabeth last rode on horseback during Trooping the Colour 37 years ago, before opting to take part in the pageantry in a carriage in the years that followed.
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His grandchildren,Prince George,Princess CharlotteandPrince Louis, shared a carriage ride with their mother,Kate Middleton, along withQueen Camilla.
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While King Charles' actual birthdate is Nov. 14, he will be fêted each year with public festivities of his birthday in June as British monarch.
According to theHousehold Division, the tradition of the British monarch having both an actual birthday and official birthday dates back to the reign of the current sovereign’s namesake predecessor, King Charles II, who ruled from 1660 to 1685.
In 1748, it was decided that this parade would be used to mark the official birthday of the monarch, and Trooping the Colour became an annual event during the reign of King George III.
source: people.com