King Charles looks suave as he arrives at the Cartier Queen’s Cup Polo – with Princess Diana’s twin nieces Lady Amelia and Eliza Spencer among the glittering stars at event

King Charles cut a dashing figure as he arrived at the Cartier Queen’s Cup Polo on Sunday afternoon, where Princess Diana’s two nieces were also guests.

The 75-year-old monarch brought a royal touch to the final day of the prestigious tournament, which was held this year in Egham, Surrey.

Guests at the exclusive event also included Lady Amelia and Lady Eliza Spencer, 31, the twin daughters of Diana’s brother, Charles Spencer.

Sponsored by Cartier since 2012, the Cartier Queen’s Cup is one of the world’s leading polo tournaments and features some of the sport’s best players and ponies.

The tournament lasts three weeks and the first trophy is presented in 1960 by the King’s late mother, Queen Elizabeth II.

Charles has now followed in her footsteps and appeared all smiles as he arrived at the glittering sporting event, even the otherwise unusual weather rising to the occasion.

Charles wore his favorite Moscot sunglasses paired with a lightweight beige suit, a smart navy blue, red and gold striped tie and brown suede shoes.

His appearance came just a day after the highly anticipated Trooping The Color ceremony in London, where he was joined by the Princess of Wales for his official birthday celebration.

Both the king and his daughter-in-law, Kate Middleton, are undergoing cancer treatment, with the monarch only very recently announcing he would return to public duties.

In February, Buckingham Palace confirmed that he had been diagnosed with a form of cancer, which is not prostate cancer, which was discovered while the king was being treated for an enlarged prostate at the private London clinic.

Charles initially postponed public duties but resumed them at the end of April, speaking of his “shock” at being diagnosed with cancer while meeting patients during a visit to the University College Hospital Macmillan Cancer Center in central London.

To mark yesterday’s occasion, King Charles III rode in a carriage with Queen Camilla, a departure from last year’s ceremony due to his illness, and inspected the officers and guards at Whitehall’s Horse Guards Parade from the carriage rather than from a horse .

At today’s polo, Charles seemed to be in good form and interacting with the guests around him.

Among those in attendance were the glamorous Spencer sisters, with Lady Amelia opting for a sophisticated white silk blouse and trousers, paired with gold accessories.

Her twin sister, Lady Eliza, complemented her in a white dress with short sleeves and a belt.

The siblings grew up in South Africa but moved to Britain three years ago and have been enjoying the couture scene ever since.

Speaking to The Telegraph in 2021, the duo discussed their childhood in the wealthy suburb of Constantia in South Africa, admitting they don’t use their titles outside Britain and had a “normal, happy childhood.”

When asked what they like to do with their father Charles, the twins referred to childhood memories.

They explained: ‘Football, competitive croquet, hide and seek. Growing up, the house was always busy, full of family and friends.’

Other attendees at the event included popular Swedish singer Mabel, Trippin singer Kara Marni and actress Nikkita Chadha.

Charles’s presence at the polo coincided with Father’s Day and came just hours after the royal family’s X account shared images of the king and his late father, Prince Philip, taken from the BFI archive.

The Prince of Wales also shared a photo of himself playing football with the King. The photo of William and Charles together in the gardens of Kensington Palace was taken on June 12, 1984.

“Happy Father’s Day, Dad,” read the social media post, personally signed by William.

The photo shows an almost two-year-old William in short dungarees and a striped blue top and the King in a gray double-breasted suit kicking a small football.

Later that same year, William would have a younger brother, with the Duke of Sussex born in September.