Princess Charlotte has made her royal debut on the Buckingham Palace balcony, rounding off the Trooping the Colour celebrations.
The Duke and Duchess of Cambridge's toddler daughter fulfilled a special rite of passage as an HRH.
The 13-month-old joined her family - including older brother Prince George - on the famous frontage of the London landmark for the first time, on the official 90th birthday of her great-grandmother the Queen.
Pomp and pageantry was the order of the day as the Queen, the Duke of Edinburgh, the Prince of Wales, the Duchess of Cornwall, William, Kate and Prince Harry earlier took part in the monarch's annual Trooping the Colour parade.
Over the weekend the nation is celebrating the life of the Queen - Britain's longest reigning and oldest sovereign - in the national commemorations of her milestone anniversary.
The royals - with the Queen in neon green taking centre stage - took to the balcony to watch the traditional RAF flypast of historic and current military aircraft.
Thousands of tourists and royals fans filled The Mall, stretching back from the iron palace gates, cheering the Queen and her family.
Earlier, well-wishers were treated to the sight of the monarch and 95-year-old Philip travelling to Horse Guards in the Ascot Landau, and the imposing presence of The Sovereign's Escort, mounted troops from the Life Guards and Blues and Royals.
The procession included the royal colonels on horseback - heir to the throne Charles, Colonel of the Welsh Guards, the Princess Royal, Colonel of the Blues and Royals, and William, Colonel of the Irish Guards.
On the parade ground in their famous scarlet tunics and bearskins were the Coldstream, Grenadier and Scots Guards - while the Irish Guards lined the Queen's processional route from Buckingham Palace.
The Colour being paraded on Horse Guards this year was the flag of Number 7 Company Coldstream Guards, the unit last performed this special role in 2007.
Almost 1,500 officers and their men, in immaculate uniforms, were on parade with more than 300 horses featured.
Among them was Britain's Got Talent winner and Household Cavalry bandsman Richard Jones whose skill as a magician saw him triumph in the popular show.
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