Queen Elizabethwas undeniably the star of the Platinum Jubilee, butPrince Louismight have had the most fun!

“What a fantastic weekend of celebrations. Seeing people across the nation coming together with family, friends and loved ones has been extremely special,” they wrote. “Thank you to everyone who turned out to show their gratitude to The Queen and her inspiring 70 years of leadership. From the crowds on the Mall to communities hosting street parties up and down the country, we hope you had a weekend to remember.”

Prince Williamand Kate then quipped, “We all had an incredible time, especially Louis…” with the eyes emoji.

Kate Middleton and Prince Louis.RICHARD POHLE/POOL/AFP via Getty

Britain’s Catherine, Duchess of Cambridge (L), Britain’s Prince Louis of Cambridge and Britain’s Princess Charlotte of Cambridge (R) watch the Platinum Pageant in London on June 5, 2022 as part of Queen Elizabeth II’s platinum jubilee celebrations. - The curtain comes down on four days of momentous nationwide celebrations to honour Queen Elizabeth II’s historic Platinum Jubilee with a day-long pageant lauding the 96-year-old monarch’s record seven decades on the throne. (Photo by Richard Pohle / POOL / AFP) (Photo by RICHARD POHLE/POOL/AFP via Getty Images)

The Duke and Duchess of Cambridge signed the note with their initials — indicating its personal nature — and completed the posts with a black and white photo ofPrince WilliamandPrince Louiswalking together during Trooping the Colour.

Prince Louis attended Trooping the Colouron Thursday, taking part in his carriage ride debut alongside siblings Prince George, 8, and Princess Charlotte, 7. Sitting between his older brother and sister, he enthusiastically waved to the crowds — even when Charlottetried to stop him.

For more on the Queen’s Platinum Jubilee, listen below to our daily podcast PEOPLE Every Day.

To make things even more adorable, Prince Louiswore the same mini sailor suitthat his father wore to Trooping at age 2 in 1985. (The same year Louis' uncle,Prince Harry, made his own Trooping the Colour debut!)

Prince Louis and Princess Charlotte.BACKGRID

Princess Charlotte and Prince Louis

Matt Dunham - WPA Pool/Getty

Catherine, Duchess of Cambridge and Prince Louis during Trooping The Colour on June 2, 2022 in London, England.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. 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.

Meanwhile, Kate repeatedly reminded her youngest child to take his hands out of his mouth, at one point saying, “Good boy.”

Queen Elizabeth, Prince Louis, Kate Middleton, Princess Charlotte and Prince George.DANIEL LEAL/AFP via Getty Images

Prince Louis of Cambridge (2L) holds his ears as he stands next to Britain’s Queen Elizabeth II (L), his m mother Britain’s Catherine, Duchess of Cambridge (C), Britain’s Princess Charlotte of Cambridge (2R)and Britain’s Prince George of Cambridge to watch a special flypast from Buckingham Palace balcony following the Queen’s Birthday Parade, the Trooping the Colour

Prince Louishad afront row seat to the festivitiesagain on Sunday, when the Cambridge family gathered for the weekend’s big finale: the Platinum Jubilee Pageant.

Kate Middleton, Mike Tindall and Prince Louis.Chris Jackson - WPA Pool/Getty

LONDON, ENGLAND - JUNE 05: (L-R) Prime Minister Boris Johnson, Mike Tindall, Mia Tindall (front row) Catherine, Duchess of Cornwall and Prince Louis of Cambridge watch the Platinum Pageant on June 05, 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. (Photo by Chris Jackson - WPA Pool/Getty Images)

Prince Louispointed out elements of the parade to Kate,“read” the programand stood up on his seat to get a better look.

Although hemade a few cheeky facesat his mom, he also cuddled sweetly with Kate — and took turns also sitting on the laps of dadPrince Williamand grandfatherPrince Charles!

Prince Charles and Prince Louis at the Platinum Jubilee.Chris Jackson - WPA Pool/Getty

LONDON, ENGLAND - JUNE 05: Prince Louis of Cambridge sits on Prince Charles, Prince of Wales lap during the Platinum Pageant on June 05, 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. (Photo by Chris Jackson - WPA Pool/Getty Images)

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To cap off the weekend,Prince Louisjoined his family on the Buckingham Palace balcony again forQueen Elizabeth’ssurprise appearance.

source: people.com