Hardly a day goes by without the styles of Kate Middleton and Princess Mary being compared – to such an extent that the pair have been called unofficial ‘royal sisters’.
And when Princess Mary dazzled in a white broderie anglaise dress in Aarhus on Thursday, fashion critics were quick to comment on how similar the Crown Princess’s pretty Temperley London dress was to something worn previously by the Duchess of Cambridge.
Here, FEMAIL recalls the times that English-born Kate Middleton, 36, and Australian-born Princess Mary, 46, have dressed alike.
From their attire on the slopes to how they dress on race days, for official state visits and more, it’s uncanny how often the two royals have looked like style sisters.
When Princess Mary stepped out in a white lace dress in Aarhus (left), fashion critics were quick to compare the outfit to something worn by the Duchess of Cambridge (right), when she visited Australia
While Princess Mary’s dress was by British designer Temperley London (left), Kate Middleton’s was by Australian label, Zimmermann (right)
The pair have also both favoured a block colour on occasion (pictured), such as royal blue (Kate Middleton pictured in 2016; Princess Mary pictured in 2017)
Most recently, on Thursday, 46-year-old Princess Mary looked immaculate in a white lace dress as she and her husband, Prince Frederik, continued celebrations for his 50th birthday.
The $1,691 dress, by Temperley London, was remarkably similar to several white lace dresses the Duchess of Cambridge has worn, including one she wore in 2014 when travelling Australia.
Making the most of the Sydney sunshine, Kate Middleton then dressed in a white dress by Zimmermann, which retailed for $495.
Both wore their dresses with nude heels, but while Mary opted for an elegant chignon and stilettos, Kate uncharacteristically paired her outfit with sandals and her trademark glossy blow dry.
When hitting the slopes, both favour fluffy hats, faux fur trims and photo calls with their adorable children (pictured)
The Duchess of Cambridge (pictured) drew plaudits for her red Jenny Packham dress when she attended her very first state banquet in 2015 and clinked glasses with the Chinese president
Just the following year, Princess Mary (pictured) also opted for regal red and a tiara when she clinked glasses with the late Prince Henrik at a State Banquet at Fredensborg Palace
For the occasion, the Duchess of Cambridge (pictured) wore a Cartier tiara
Princess Mary often wears red (pictured), such as when she did in 2004
Elsewhere, the pair have dressed similarly, once even both pairing a Royal blue dress with a circular pendant and loose curls.
On the slopes, the royals favour cosy bobble hats and fake fur-trimmed jackets.
When Princess Mary visited Verbier in 2013, she paired a khaki, fake-fur-lined ski jacket with grey hat and black salopettes.
Meanwhile, when Kate Middleton visited the Alps with Prince William and their then-two children in 2016, she opted for a white jacket, red salopettes and fluffy hat.
White coats have also been a staple in the princesses’ wardrobes (pictured left, Kate Middleton in Max Mara and Princess Mary with the Duchess of Cornwall in 2012)
At Royal Ascot in 2016, fashion critics were quick to draw attention to the ‘lookalike’ princesses stood together – saying they looked like sisters (pictured)
At royal appointments and state visits, their styles have remained extremely similar.
The Duchess of Cambridge drew plaudits for her red Jenny Packham dress when she attended her very first state banquet in 2015 and clinked glasses with the Chinese president wearing her Cartier tiara.
Just the following year, Princess Mary also opted for regal red and a tiara when she clinked glasses with the late Prince Henrik at a State Banquet at Fredensborg Palace on the first day of a State visit of the President of The United Mexican States.
Floral patterned dresses have also been sported by both royals (pictured)
After Kate Middleton wore the famous Issa navy blue dress (left) to shoot her engagement photographs, Princess Mary later wore a similar style in 2017 at an event for the UN (right)
When it comes to their approach to fashion, both Princess Mary and the Duchess of Cambridge favour clean lines, sharp looks and the odd splash of block colour.
They also both love to wear a wrap dress, and after Kate Middleton wore the famous Issa navy blue dress to shoot her engagement photographs, Princess Mary later wore a similar style in 2017 at an event for the UN.
At Royal Ascot in 2016, fashion critics were quick to draw attention to the ‘lookalike’ princesses stood together.
The pair could have easily been mistaken for sisters, with Kate plumping for an ethereal white lace Dolce & Gabbana dress, and Mary wearing a vibrant orange number by Marc Jacobs.