The Duchess of Cambridge, Kate Middleton, shared a carriage with Prince Harry, her mother-in-law Camilla Parker-Bowles, and Prince Wiliam's uncle Prince Andrew this morning at the Trooping the Colour procession in London. The annual ceremony is held to recognize the birthday of the sovereign, though Queen Elizabeth actually turned 85 on April 21. The royals tend to celebrate the Queen's big day in the Summer, however, as the weather is better for outdoor events. Her husband, Prince Philip, actually just celebrated a milestone — Philip's 90th birthday was yesterday! He received a new title for the occasion. Prince Philip, known as the Duke of Edinburgh, is now also the Lord High Admiral of the navy, and is planning to begin scaling back his official workload. This was William's first time riding in the parade, and he was able to wear the distinctive bearskin hat while riding next to his father Charles. William wore the Irish Guards uniform, which he donned during his April 29 wedding to Kate, for the first time since their nuptials. The pomp wrapped up with William's family reuniting on the balcony of Buckingham Palace as well. William and his wife have had a busy week of social obligations, after Kate dazzled in Jenny Packham at Thursday's ARK dinner.