William and Kate star at Trooping
The Duke and Duchess of Cambridge have played a starring role in the Queen's birthday parade as the nation honoured the monarch.
The newlyweds had prominent roles in the Trooping the Colour ceremony for the first time.
William rode faultlessly on his grey charger while Kate, elegant as ever, took her place with other members of the Royal Family to watch the event.
The ceremony, staged every June in London's historic Horse Guards Parade, marked the 85th birthday of the sovereign, who has reigned since 1952.
The Duchess reprised her royal wedding carriage procession of less than six weeks ago, riding in a horse-drawn barouche with Prince Harry - in his Blues and Royals uniform and Army Air Corps blue beret - the Duchess of Cornwall and Duke of York.
The group were cheered loudly by thousands of well-wishers as they travelled from Buckingham Palace along The Mall to the ceremony, then back to the Palace to watch the traditional fly-past from the balcony.
Among the guests were the Earl and Countess of Wessex, their seven-year-old daughter Lady Louise Mountbatten-Windsor, Princess Eugenie and Prime Minister David Cameron.
Families and friends of hundreds of Guardsmen taking part enjoyed watching their precision marching from stands overlooking the parade ground.
William took part in the ceremony as he is now Colonel of the Irish Guards and he wore the famous scarlet tunic of his new regiment and bearskin hat. He rode the charger Wellesley, aged only seven but mature enough to take centre stage with the other prominent Household Division horses.
The Queen arrived in an ivory-mounted phaeton with the Duke of Edinburgh, who celebrated his 90th birthday on Friday and was dressed in uniform as Colonel of the Grenadier Guards.