Seeing double: The royals have worn the same outfit on more occasions than you'd think

In March 2021, Duchess Catherine stepped out in a long camel coloured woollen coat from Spanish label Massimo Dutti - she paired the look with a simple brown polo neck jumper underneath. Of course, royal fans couldn't help but notice the entire ensemble was rather reminiscent to one worn by Duchess Meghan just over a year prior - Kate's in-law wore a near-identical Stella McCartney coat with an affordable turtle neck top from H&M.

Red alert: Over the weekend, Duchess Meghan oozed elegance when she stepped out in a siren-red cape dress by Safiyaa during one of her final appearances as a senior royal at the Endeavour Fund Awards. And it turns out her royal counterpart, Queen Letizia of Spain, opted for a very similar style of gown back in 2017 when she attended King Willem-Alexander of the Netherlands' 50th birthday bash. The 47-year-old cut an elegant figure in a dramatic scarlet frock by Stella McCartney.

On her state visit to Ireland with Prince William, Duchess Catherine glittered in an emerald green Vampire's Wife dress. And William's cousin Princess Beatrice wore the same dress for The Dior Sessions book launch afterparty in October 2019.

Princess of Sofia of Sweden stunned in this white Self-Portrait dress at a State Banquet in June 2019 whilst Duchess Catherine wore the same dress (with the slit) back in 2016.

This floral Erdem dress has not just been worn by Duchess Catherine at the 2019 RHS Chelsea Flower Show but also by the Duchess of Kent at Harry and Meghan's royal wedding plus, Princess Eugenie at the 2019 Royal Maundy service at Windsor Castle.

This Carolina Herrera red coat looked great on Duchess Catherine in Belfast in 2019 and equally lovely on Princess Sofia of Spain when she attended the country's National Day military parade in 2016.

When Duchess Catherine and Crown Princess Mary were pregnant, they wore the same Malene Birger maternity coats only in different hues.

Duchess Catherine is a big fan of Emilia Wickstead and has this chic flared dress in both green and lilac. But it's also hanging in Crown Princes Mary's wardrobe and she wore her blue version in Tokyo's Shibuya district in 2015.

Duchess Catherine's Jenny Packham gown is a personal favourite of ours, but did you know Princess Madeleine of Sweden wore the same gown in light blue for the 2013 New York Green Summit?

Crown Princess Mary wore a blue Project D dress for the christening and naming ceremony of Princess Athena in 2012 and Pippa Middleton wore the same frock to Wimbledon the same year.

Duchess Meghan donned a red leather Hugo Boss pencil skirt to a roundtable discussion about gender equality as part of the One Young World summit in 2019 and that same year Spain's Queen Letizia wore the same skirt on a visit to Seoul, South Korea.

Princess Beatrice was pretty in pink in her Emilia Wickstead dress at the Trooping the Colour celebrations in 2019. Perhaps she borrowed it from her aunt Countess Sophie who wore the same one to Royal Ascot in 2018?

Ok now we really are seeing double. Crown Princess Victoria of Sweden stepped out in the same Nina Ricci dress her mother Queen Silvia wore back in 1995 to Nobel Prize Awards ceremony for the 2018 ceremony.

Crown Princess Mary looked radiant in this printed Vilshenko dress on a visit to Tokyo and so did Princess Charlene at Monaco's annual traditional Pique Nique Monegasque.

Princess Charlene of Monaco and Queen Maxima of the Netherlands oozed glamour in the same one-sleeved Stella McCartney gown at the Laureus World Sports Awards and annual gala diner for the Diplomatic Corps, respectively.

Crown Princess Victoria of Sweden was feeling peachy in Ellie Saab at her nephew Prince Alexander's christening in 2016 and a year later, Queen Maxima of the Netherlands wore it to the Champalimaud Centre in Portugal.