The Cambridge Kids Wave to the Crowd at the Trooping the Colour Parade

Prince William and Duchess Kate arrived at Trooping the Colour today with their three kids for the first time since 2019.

Prince George, Prince Louis, and Princess Charlotte sat in the carriage procession during the parade and smiled and waved to fans.

london, england june 02 prince george, prince louis and princess charlotte in the carriage procession at trooping the colour during queen elizabeth ii platinum jubilee on june 02, 2022 in london, england the platinum jubilee of elizabeth ii is being celebrated from june 2 to june 5, 2022, in the uk and commonwealth to mark the 70th anniversary of the accession of queen elizabeth ii on 6 february 1952 trooping the colour, also known as the queens birthday parade, is a military ceremony performed by regiments of the british army that has taken place since the mid 17th century it marks the official birthday of the british sovereign this year, from june 2 to june 5, 2022, there is the added celebration of the platinum jubilee of elizabeth ii in the uk and commonwealth to mark the 70th anniversary of her accession to the throne on 6 february 1952 photo by karwai tangwireimage

Karwai Tang//Getty Images

The siblings matched in blue. George wore a navy suit and tie, Charlotte wore a vibrant cyan sundress, and Louis wore the white-and-blue sailor suit worn by his father to the same event in 1985, when he was a child.

london, england june 02 prince george, prince louis and princess charlotte in the carriage procession at trooping the colour during queen elizabeth ii platinum jubilee on june 02, 2022 in london, england the platinum jubilee of elizabeth ii is being celebrated from june 2 to june 5, 2022, in the uk and commonwealth to mark the 70th anniversary of the accession of queen elizabeth ii on 6 february 1952photo by aaron chown wpa poolgetty images

WPA Pool//Getty Images

Kate, who sat in the carriage with her kids and Duchess Camilla, wore an ivory Alexander McQueen coat dress, which she paired with a navy blue hat with white trim by Philip Treacy. She accessorized with sapphire-and-diamond earrings and a necklace, which matched her 12-carat oval Ceylon sapphire engagement ring.

Camilla wore a striped light blue dress with a matching minty blue hat.

london, england june 02 l r camilla, duchess of cornwall, catherine, duchess of cambridge, and princess charlotte of cambridge ride in a carriage as the royal procession leaves buckingham palace for the trooping the colour parade on june 2, 2022 in london, england trooping the colour, also known as the queens birthday parade, is a military ceremony performed by regiments of the british army that has taken place since the mid 17th century it marks the official birthday of the british sovereign this year, from june 2 to june 5, 2022, there is the added celebration of the platinum jubilee of elizabeth ii in the uk and commonwealth to mark the 70th anniversary of her accession to the throne on 6 february 1952 photo by aaron chown wpa poolgetty images

WPA Pool//Getty Images

William did not ride in the carriage, but rather stood as part of the Irish Guards.

london, england june 02 prince george, prince louis and princess charlotte in the carriage procession at trooping the colour during queen elizabeth ii platinum jubilee on june 02, 2022 in london, england the platinum jubilee of elizabeth ii is being celebrated from june 2 to june 5, 2022, in the uk and commonwealth to mark the 70th anniversary of the accession of queen elizabeth ii on 6 february 1952 trooping the colour, also known as the queens birthday parade, is a military ceremony performed by regiments of the british army that has taken place since the mid 17th century it marks the official birthday of the british sovereign this year, from june 2 to june 5, 2022, there is the added celebration of the platinum jubilee of elizabeth ii in the uk and commonwealth to mark the 70th anniversary of her accession to the throne on 6 february 1952 photo by karwai tangwireimage

Karwai Tang//Getty Images

Trooping the Colour, also known as The Queen's Birthday Parade, is a military ceremony performed by regiments of the British Army that has taken place since the mid-17th century.

The parade is the first celebration to mark Queen Elizabeth's Platinum Jubilee—honoring her 70 years on the throne. The monarch first ascended to the throne on February 6, 1952.

The celebrations for the queen will continue through Sunday and will include the National Service of Thanksgiving, the Derby at Epsom Downs, and the Platinum Jubilee Pageant.

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Rosa Sanchez is the senior news editor at Harper's Bazaar, working on news as it relates to entertainment, fashion, and culture. Previously, she was a news editor at ABC News and, prior to that, a managing editor of celebrity news at American Media. She has also written features for Rolling Stone, Teen Vogue, Forbes, and The Hollywood Reporter, among other outlets. 

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