From family weddings to public outings, the royal family have always been seen as a tight-knit pack. They're often pictured hugging and kissing each other, and often show their support for each other at major events and on social media. Let's take a look at some of the royal cousins' sweetest moments...
Back in 2015, the Prince of Wales and his cousin Peter Phillips were seen embracing one another at the Gigaset Charity Polo Match at the Beaufort Polo Club. Accompanied by their children, the cousins looked delighted as they greeted each other - showing the world their affection and close bond they share.
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WATCH: Mia Tindall waves at Princess Charlotte during cute cousins moment
In March, the royals gathered at Westminster Abbey to honour the late Duke of Edinburgh, 11 months after his death. Yet, the sombre occasion was marked by an especially sweet interaction between Mia Tindall and Princess Charlotte. Mia was captured excitedly waving at her cousin as she walked away with mum Kate Middleton.
Lady Louise Windsor and her younger brother, James, Viscount Severn, are the youngest of the Queen's grandchildren.
The Earl and Countess of Wessex's daughter shares a close relationship with her older cousins, Princess Beatrice and Princess Eugenie.
In this photo from 2013, Eugenie was seen putting her arm around her young cousin as they attended a Westminster Abbey service to mark the 60th anniversary of the Queen's Coronation.
Lady Louise was also given a role as special attendant at Eugenie's wedding in 2018.
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In March 2019, Zara Tindall competed at Gatcombe Park Horse Trials in Gloucestershire, and her daughter Mia enjoyed a rare moment of spring sunshine with her cousin Savannah Phillips. The royal children were seen walking dogs and eating ice cream together on their grandmother Princess Anne's estate, with Savannah even offering Mia a piggyback.
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This isn't the first time Mia has played with her cousins while visiting the Gatcombe Estate. During an equestrian event in September 2018, Mia was seen play fighting with Savannah's sister Isla.
But it isn't just the Tindall family who Savannah is close with. At Beaufort Polo Club, the eight-year-old was seen playing with her cousins Prince George and Princess Charlotte, even being told off by her mother Autumn Phillips after pushing George down a slope.
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The older royals have a close connection too. At the 2012 London Olympics, Princesses Beatrice and Eugenie were seen enthusiastically watching a showjumping event with their cousins Princes William and Harry, as well as Kate.
The bond between the royal cousins stems back to childhood and we adore this photo of seven-year-old Prince William pushing baby Princess Beatrice, around in a pram in 1989.
Prince William has a particularly close relationship with Zara Tindall, with their one-year age difference meaning that the cousins grew up alongside each other. In 2010, the pair embraced at the Festival of British Eventing, William even playfully squishing Zara's brother Peter's nose while his cousin looked on and laughed.
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There's nothing like the holidays to bring families together, with William and Harry hanging around after the Christmas Day service at Sandringham Church in 2009 to chat with their cousin Zara.
Keen to support her cousin at the launch of the Invictus Games, a sports tournament for injured servicepeople, Zara took part in a game of wheelchair rugby alongside Harry and her rugby player husband, Mike Tindall.
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Just as Zara and the Princes are great friends, Harry showed that he was great with children as he joked around with Zara's eldest daughter Mia.
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Ever the supportive cousin, Prince William offered Zara shelter from the rain while attending a fundraising event for the sports injury charity Inspire in 2004.
Attending Ascot in 2017, the good weather saw Zara and Prince William embrace and share a kiss on the cheek in the sun.
The Princes have always been close to their cousins Eugenie and Beatrice, chatting and laughing together during the 2012 Trooping the Colour.
The 2012 Olympics were frequently attended by the royal family, with Prince Harry and Princess Beatrice excitedly waving at each other from other ends of the crowd while watching an event.
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The female royals are often seen together too, with Zara Tindall and Princess Beatrice sharing a laugh.
Even royal cousins-in-law have a strong connection, with Zara's husband Mike greeting Beatrice with a warm hug at a summer event.
During a concert for Prince Harry's charity Sentebale at Kensington Palace in 2016, Peter Phillips, Princess Eugenie and Mike Tindall were spotted enjoying the night of entertainment, with Eugenie sheltering herself from the rain in an ever-so-stylish plastic anorak!
Back where it all began, the young royals were known to spend holidays together with their close mothers, Princess Diana and the Duchess of York. We love the 90s ski gear from this trip in 1995!