For Charlotte's 2015 christening, the Princess of Wales wore a white Alexander McQueen coatdress and a statement hat designed by Jane Taylor.

Her monochromatic outfit coordinated with Charlotte's off-white christening dress.

Charlotte wore a pink dress and shoes, as well as a pink barrette, to her first Trooping the Colour in June 2016.

The ensemble coordinated with Kate's Philip Treacy hat, which she wore with a white dress. The pink hat popped next to Charlotte's ensemble.

Kate wore a long-sleeved Jenny Packham dress with a collared neckline. She paired it with a floral hat and a maple leaf brooch. The blue outfit complemented Charlotte's light-blue dress.

Charlotte's barrette and shoes matched her mother's ensemble, too. 

Kate wore a white ski jacket, while Charlotte wore a small, white ski suit. 

Prince William and Prince George wore coordinating blue jackets as well, tying the whole family together.

Kate's red clutch appeared to match Charlotte's tights. 

The young princess also wore a red barrette in her hair, further connecting their looks.

Charlotte wore a white flower girl dress with a blush ribbon around her waist and a floral headpiece.

Kate wore an Alexander McQueen hat and headpiece almost the same color as the belt on Charlotte's dress.

As they started the trip, Kate matched Charlotte and George in a blue A-line dress with button detailing on the waistline.

Charlotte's floral dress and dark-blue shoes coordinated with her mother's dress, as did George's blue shirt and shorts.

Charlotte wore a pink dress with a ruffled collar, while Kate wore a bubblegum-pink Alexander McQueen dress with a full skirt and a matching hat. 

When the royal family gathered for the 2018 Trooping the Colour, Kate wore a light-blue dress designed by Alexander McQueen. The dress had a square neckline and was cinched at the waist.

Charlotte rocked a blue, floral dress that complemented her mother's ensemble. 

Kate's Alexander McQueen dress for the wedding was technically yellow, but it flowed seamlessly with Charlotte's white flower-girl dress.

Meghan later revealed the flower-girl dresses were a source of tension between her and the Princess of Wales.

Kate's short-sleeve dress was bright pink, while Charlotte's floral dress was paler. 

Charlotte also wore a pink ribbon in her hair, adding to her colorful look.

Charlotte embraced the Christmas spirit in a deep-green jacket on the royal family's Christmas walk at Sandringham in 2019. 

The jacket coordinated with Kate's purse, shoes, and hat, which she wore with a gray, fuzzy coat.  

Kate wore an Emilia Wickstead coatdress to the service, which she had previously worn on a 2017 trip to Luxembourg. She paired the look with a darker blue hat and blue heels.

Like her mother, Charlotte wore a bright-blue dress, though her Rachel Riley frock had a floral pattern and a Peter Pan collar. Her blue tights were also light blue, while her cardigan and Mary Janes were navy. 

For the Carol Service, the Princess of Wales wore another of her signature coatdresses: a maroon, ankle-length piece from Epinone. Her shoes matched the dress.

Charlotte also arrived in a maroon jacket with a fuzzy collar, which she paired with navy-blue tights.

Charlotte's ensemble looked like a combination of her parents' outfits, as Prince William wore a blue suit and jacket with a maroon tie.

The entire Wales family wore blue for the 2023 Easter service at Windsor Castle.

Kate wore a recycled outfit for the event, donning a royal-blue Catherine Walker coatdress she previously wore to a Commonwealth Day service in 2022. A coordinating hat from Lock & Co., a blue purse, and nude heels completed the look. 

Charlotte wore a floral dress with a Peter Pan collar and puffy sleeves, pairing the spring frock with blue tights and Mary Janes. 

After months of public absence while undergoing chemotherapy, Kate attended her first royal engagement of 2024 at Trooping the Colour.

She wore a white Jenny Packham dress with navy detailing on the high neckline and waist. A large bow popped on the neckline, and the Princess of Wales wore a matching blue and white hat designed by Philip Treacy.

Charlotte's dress looked like a miniature, inverse version of her mother's. Her dress was navy with white detailing on the waist, sleeves, and neckline, and just like her mom's, it had a white bow on the neckline.

Kate and Charlotte had another twinning moment at the 2024 "Together at Christmas" carol service.

Kate wore a red Alexander McQueen coat for the occasion, which had button detailing and a black bow at the neckline. She paired it with black boots.

Charlotte also arrived in a red coat with buttons, which she paired with blue tights and black Mary Janes.

Kate looked festive in an emerald green Alexander McQueen coat for the royal family's annual walk through Sandringham for Christmas in December 2024.

She wore a coordinating hat, sported black boots, and carried a black purse, but the standout accessory of her look was a blue and green tartan scarf — which matched Charlotte's coat.

Charlotte's coat had blue velvet on the collar, and she paired the statement piece with navy tights and black Mary Janes.

Kate's Catherine Walker coatdress had white detailing on the collar and sleeves. She wore a matching floral hat designed by Juliette Botterill with the bright dress, as well as an Irish Guards brooch.

Charlotte's dress was a shade lighter than her mother's, but it also had white detailing on the neckline and waist. She also had a small pin on her dress.

Kate, William, George, and Charlotte attended the Wimbledon finals together in July 2025.

The Princess of Wales wore a royal blue A-line dress with short sleeves and a bow-shaped ruffle on one shoulder. She also wore a bow pin.

Charlotte's tea-length dress was white, though the bodice had ruffles trimmed with navy fabric. A bow sat on her waistline, mirroring the details on Kate's dress.