Who is royal cousin Arthur Chatto – the heartthrob environmentalist and serving Marine who turns 25 today?

It seems a world ago when, on February 5, 1999, Princess Margaret‘s grandson made his first royal appearance to the public as a Page of Honour for the late Queen.  

Holding the role between 2009 to 2015, he was responsible for carrying his great-aunt’s gown at ceremonial events.

Today, as he turns 25, action man Arthur Chatto makes his living as a member of the Royal Marines, the first royal to join the regiment. He is 30th in line to the throne.

After attending Westminster Cathedral Choir school, Arthur followed in the footsteps of Princes Harry and William footsteps by attending Eton College.

Arthur Chatto, who is 30th in line of succession, celebrates his 25th birthday today

He is the youngest son of Princess Margaret’s daughter, Lady Sarah, and Daniel Chatto

Arthur  made royal history in 2021 when he became the first member of the Royal Family to join the Marines

At Eton, he was in its Combined Cadet Force, which teaches pupils a range of military skills. Afterwards, he followed his older brother Sam to Edinburgh University.

Arthur, who studied History of Art, juggled his studies with working as a personal trainer at the BoundFitness gym in the city.

In a profile of the young royal shared on Instagram, Arthur wrote: ‘I’m a level 3 personal trainer, I specialise in strength and endurance training with a military focus.’

Princess Margaret’s grandson is also said to be a fan of outdoor sports, including mountain climbing. The adventurous royal has even been ice diving in Greenland and climbing in the Alps.

Arthur, who is a keen environmentalist like Prince William and Harry, was also part of a four-man squad that completed an epic row around the UK to raise money for The British Red Cross and Just One Ocean in 2020.

Speaking about the 2,000-mile GB Row Challenge which took 38 days, Arthur said that preparing for the challenge had been ‘mental’ and very physically demanding.

Preparation did not come easy, as he reportedly went on 20-mile hikes and camped in the Scottish Highlands in preparation for his uniformed role.

Arthur, left, was part of a four-man squad that completed an epic row around the UK in 2020

Arthur Chatto in uniform with brother Samuel. Ahead of them are father Daniel and  their mother Lady Sarah Chatto during the State Funeral of Queen Elizabeth II at Westminster Abbey

Princess Margaret’s grandson Arthur is also said to be a fan of outdoor sports including Arctic diving and mountain climbing

The Chatto family attends the Cartier Style & Luxury Lunch at the Goodwood Festival of Speed in 2012. Arthur stands next to his mother

Arthur was greeted at the finish at St Katherine Docks in London by his family and his long-term girlfriend, Lizzie Friend.

Lizzie was a fellow Edinburgh University student, where Arthur was studying, and a source previously told the Daily Mail: ‘They hit it off straight away.

‘She’s really sweet and they make a very nice couple. He took her to Royal Ascot this summer as his date.’

Arthur has also made royal history, as in 2021, he became the first member to join the Marines. The late Queen was said to be ‘pleased and proud’ of her great-nephew’s achievements.

Since then, he has attracted attention as a royal heartthrob, as he sported his Marines uniform for the Service of Thanksgiving for the Queen at St Paul’s Cathedral in 2022.

Arthur racked up followers on his now-deleted Instagram account after he would often post revealing snaps, including one topless photo taken during a ‘Scottish swim’ alongside older brother Samuel during his university Freshers week.

Arthur made his first royal appearance to the public as a Page of Honour for the late Queen, a key role which he held between 2009 to 2015

Arthur followed in Prince Harry and Prince William ‘s footsteps by attending the £33,270-a-year Eton College before heading to Edinburgh University

Although there is no official Instagram account, it has not stopped Arthur’s pictures from popping up, as adoring fans have kept his online presence alive by creating fan pages where they share photos and videos of the royal.

The royal seems to have enjoyed watching the The Crown, as he admitted to The Telegraph.

Arthur said: ‘Yes, I have watched it, I guess it’s only an interpretation. So I just kind of remember what they’re actually like and don’t let the TV persona mar my judgment of any of them.’