01of 32Samir Hussein/WireImagePrince GeorgeandPrincess Charlottemay be young, but they’re already regulars on the wedding scene.
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Samir Hussein/WireImage

Prince GeorgeandPrincess Charlottemay be young, but they’re already regulars on the wedding scene.
02of 32Samir Hussein/WireImagePrince George was turning on the cuteness before he even got out of the car at the wedding of his aunt,Pippa Middleton, to James Matthewsin May 2017.
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Prince George was turning on the cuteness before he even got out of the car at the wedding of his aunt,Pippa Middleton, to James Matthewsin May 2017.
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Charlotte wore an ivory silk dress with a frilled collar, a nude pink sash and matching trim across the sleeves and neckline with hand-embroidered detailing. The bodice featured a vintage style lace panel and the dress carried a net petticoat with lace trim underneath. She also wore ivory opaque tights and beige soft leather shoes.
05of 32REX/ShutterstockGeorge wore an ivory double-breasted silk pleated shirt with Peter Pan collar and coordinating trim detail paired with knickerbockers in pale olive Vienne silk and a matching cummerbund.
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REX/Shutterstock

George wore an ivory double-breasted silk pleated shirt with Peter Pan collar and coordinating trim detail paired with knickerbockers in pale olive Vienne silk and a matching cummerbund.
06of 32Kirsty Wigglesworth/APCharlotte, who also wore a floral headband, flashed a big smile with mom Kate as the little bridal party members prepared to walk down the aisle.
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Kirsty Wigglesworth/AP

Charlotte, who also wore a floral headband, flashed a big smile with mom Kate as the little bridal party members prepared to walk down the aisle.
07of 32REX/ShutterstockAfter the ceremony, wedding guests told reporters that the children were “very” well-behaved during the ceremony.
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After the ceremony, wedding guests told reporters that the children were “very” well-behaved during the ceremony.
08of 32George adorably channeled dad William, who was apage boy in his uncle Prince Andrew’s weddingto Sarah Ferguson in 1986. And Charlotte was oh-so-sweet in her matching bridesmaid dress.
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George adorably channeled dad William, who was apage boy in his uncle Prince Andrew’s weddingto Sarah Ferguson in 1986. And Charlotte was oh-so-sweet in her matching bridesmaid dress.
09of 32Samir Hussein/WireImagePepa Gonzalez told PEOPLE, “It was truly an honor to be part of this project and I was excited to take on the commission for all bridesmaid and page boy outfits.”
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Pepa Gonzalez told PEOPLE, “It was truly an honor to be part of this project and I was excited to take on the commission for all bridesmaid and page boy outfits.”
10of 32JUSTIN TALLIS/AFP/GettyThe designer added, “We have such fond memories of designing these bespoke garments for the children who all look so adorable and cute.”
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JUSTIN TALLIS/AFP/Getty

The designer added, “We have such fond memories of designing these bespoke garments for the children who all look so adorable and cute.”
11of 32TheImageDirect.comGeorge was leader of the pack as they exited the church!
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TheImageDirect.com

George was leader of the pack as they exited the church!
12of 32Ben Birchall/PA WireThe siblings’next wedding stop? The nuptials of their uncle,Prince Harry, toMeghan Marklein May 2018!
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Ben Birchall/PA Wire

The siblings’next wedding stop? The nuptials of their uncle,Prince Harry, toMeghan Marklein May 2018!
13of 32Andrew Milligan/PA WirePrince GeorgeandPrincess Charlottetook on the important roles of page boy and bridesmaid at the royal wedding.
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Andrew Milligan/PA Wire

Prince GeorgeandPrincess Charlottetook on the important roles of page boy and bridesmaid at the royal wedding.
14of 32ANDREW MILLIGAN/AFP/GettyPrincess Charlotteproved that she’s another spare heir with a mischievous streak, appearing to stick out her tongue from inside the car as she arrived to St. George’s Chapel. (Turns out, groomPrince Harrywasknown for pulling this move as a child!)
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ANDREW MILLIGAN/AFP/Getty

Princess Charlotteproved that she’s another spare heir with a mischievous streak, appearing to stick out her tongue from inside the car as she arrived to St. George’s Chapel. (Turns out, groomPrince Harrywasknown for pulling this move as a child!)
15of 32JANE BARLOW/AFP/Getty ImagesHere we go!
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JANE BARLOW/AFP/Getty Images

Here we go!
16of 32Jane Barlow/GettyCharlotte and the other bridesmaids made their way up the stairs with the help of some of the moms!
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Jane Barlow/Getty

Charlotte and the other bridesmaids made their way up the stairs with the help of some of the moms!
17of 32Jane Barlow/AP/REX/ShutterstockCharlotte made sure to greet well-wishers outside the church with a wave.
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Jane Barlow/AP/REX/Shutterstock

Charlotte made sure to greet well-wishers outside the church with a wave.
18of 32JONATHAN BRADY/AFP/GettyGeorge and Charlotte joinedeight other little bridal party members, including several of Harry and Meghan’s godchildren. The little girls wore floral crowns and white dresses, while the boys dressed in miniature versions of the Blues and Royals frockcoat, mirroring Harry’s military ensemble.
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JONATHAN BRADY/AFP/Getty

George and Charlotte joinedeight other little bridal party members, including several of Harry and Meghan’s godchildren. The little girls wore floral crowns and white dresses, while the boys dressed in miniature versions of the Blues and Royals frockcoat, mirroring Harry’s military ensemble.
19of 32Andrew Matthews - WPA Pool/GettyA flower-crown-clad Charlotte smiles at the crowd following Meghan and Harry’s nuptials.
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Andrew Matthews - WPA Pool/Getty

A flower-crown-clad Charlotte smiles at the crowd following Meghan and Harry’s nuptials.
20of 32Jane Barlow/PA WireThe pint-sized princess showed offher royal wave.
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Jane Barlow/PA Wire

The pint-sized princess showed offher royal wave.
21of 32The adorable mother-daughter duo stand on the steps of St. George’s Chapel.
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The adorable mother-daughter duo stand on the steps of St. George’s Chapel.
22of 32Brian Lawless/GettyThe occasionmarked the first time Prince George wore pants in public! (Upper-class British boys usually wear shorts until they’re 8 years old!)
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Brian Lawless/Getty

The occasionmarked the first time Prince George wore pants in public! (Upper-class British boys usually wear shorts until they’re 8 years old!)
23of 32Andrew Matthews/PA WireGeorge also gave the public a hint of his shy side, hiding behind his dad,Prince William.
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Andrew Matthews/PA Wire

George also gave the public a hint of his shy side, hiding behind his dad,Prince William.
24of 32Round 3: The wedding of one ofKate Middleton’s closest friends,Sophie Carter, in Sept. 2018.
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Round 3: The wedding of one ofKate Middleton’s closest friends,Sophie Carter, in Sept. 2018.
25of 32George was seenmarching around with a smile on his face, while his sister Charlotte gives her big brother an amused look.
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George was seenmarching around with a smile on his face, while his sister Charlotte gives her big brother an amused look.
26of 32"George is a real star, quite the little chap," a source told PEOPLE. “He was having a great time, running around like the leader of the pack.”
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“George is a real star, quite the little chap,” a source told PEOPLE. “He was having a great time, running around like the leader of the pack.”
27of 32James Gourley/REX/ShutterstockOn Oct. 12, 2018, George and Charlotte joined the bridal party forPrincess Eugenie’s nuptials to Jack Brooksbank, arriving in style to St. George’s Chapel with a bevy of cousins and family friends.
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James Gourley/REX/Shutterstock

On Oct. 12, 2018, George and Charlotte joined the bridal party forPrincess Eugenie’s nuptials to Jack Brooksbank, arriving in style to St. George’s Chapel with a bevy of cousins and family friends.
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The kids couldn’t help but goof off on the chapel steps.
29of 32Princess Charlotte, Savannah Phillips and Prince George.YUI MOK/AFP/GettyAnd inside, too! George shared a laugh with cousin Savannah Phillips while Charlotte did her best to keep a straight face.
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Princess Charlotte, Savannah Phillips and Prince George.YUI MOK/AFP/Getty

And inside, too! George shared a laugh with cousin Savannah Phillips while Charlotte did her best to keep a straight face.
30of 32GettyAs with Harry and Meghan’s wedding, the children stayed in a room to the side during the ceremony, returning to escort the bride and groom back down the aisle after they signed the marriage register.
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Getty

As with Harry and Meghan’s wedding, the children stayed in a room to the side during the ceremony, returning to escort the bride and groom back down the aisle after they signed the marriage register.
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Press Association via AP Images

32of 32Tim Rooke/REX/ShutterstockWhile one young page boy took a fall up the stairs in the windy weather, Charlotte couldn’t stop waving to the crowd.
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Tim Rooke/REX/Shutterstock

While one young page boy took a fall up the stairs in the windy weather, Charlotte couldn’t stop waving to the crowd.
source: people.com