Peter Phillips and his new NHS nurse girlfriend Harriet Sperling put on a cosy display as they walk hand-in-hand at Prince William’s charity polo match

She has already been introduced to the King and Queen and now Peter Phillips’ new girlfriend Harriet Sperling is also attending an event that Prince William was also in attendance.

The couple stole the show as they walked hand in hand at the Out-Sourcing Inc Royal Charity Polo Cup at the Guards Polo Club in Windsor, in aid of 11 different charities supported by both the Prince and Princess of Wales.

The 46-year-old son of Princess Anne, who is 18th in line to the throne, has been in a relationship with Harriet, 44, for some time after splitting from his partner of three years Lindsay Wallace earlier this year.

The loved-up couple have since spent their summer at a range of posh events, including Royal Ascot, Wimbledon and the Badminton Horse Trials.

Now the couple have joined Peter’s cousin William, 42, in showing off his polo skills at the annual charity match.

She’s already been introduced to the King and Queen, and now Peter Phillips’ new girlfriend Harriet Sperling has made an appearance at an event attended by Prince William

NHS nurse Harriet put on an elegant show in a floral V-neck dress by Beulah London as she walked alongside the King’s cousin.

It is William’s 13th time competing in the polo match and it is expected that the total amount raised today will reach an incredible £13 million.

The charities involved are close to the couple’s hearts. These include emergency services, mental health care, childcare, nature conservation and the armed forces. Many of these charities are sponsoring organisations.

Peter and Harriet’s outing comes as Princess Anne returns to her royal duties for the first time since suffering a concussion in a horse-riding accident.

Princess Royal was taken to Bristol’s Southmead Hospital last month after reportedly being kicked by a horse at her Gatcombe Park estate in Gloucestershire.

The 73-year-old royal, a skilled rider who competed in the 1976 Montreal Olympics, was out for a walk when the incident occurred.

Emergency services were dispatched to the estate and after receiving medical attention at the scene, Anne was taken to hospital for testing, treatment and observation.

Today she attended the Riding for the Disabled Association (RDA) National Championships at Hartpury University and Hartpury College in Gloucestershire after recovering from her serious injury.

The couple stole the show when they walked hand in hand at the Out-Sourcing Inc Royal Charity Polo Cup at the Guards Polo Club in Windsor, in aid of 11 different charities supported by both the Prince and Princess of Wales.

The couple stole the show when they walked hand in hand at the Out-Sourcing Inc Royal Charity Polo Cup at the Guards Polo Club in Windsor, in aid of 11 different charities supported by both the Prince and Princess of Wales.

The loved-up couple have since spent their summer at a range of high society events including Royal Ascot, Wimbledon and the Badminton Horse Trials

The loved-up couple have since spent their summer at a range of high society events including Royal Ascot, Wimbledon and the Badminton Horse Trials

The royal family was in high spirits as she attended the event, smiling as she met members of the charity, of which she has been patron since November 1971.

Meanwhile, Peter was recently spotted with his new girlfriend Harriet, when the pair attended the fourth day of Royal Ascot last month.

The loved-up couple were photographed kissing as they attended an equestrian event in Berkshire.

In May, the couple spent the weekend together at the Badminton Horse Trials, where they were spotted holding hands.

And this afternoon the couple didn’t show their affection either, as they were captured leaning against each other and exchanging sweet glances.

After giving her boyfriend a loving kiss, Harriet was spotted having a lively conversation with Queen Camilla.

And it seems Peter’s family are thrilled with his new romance, as his cousin, Princess Beatrice, was also photographed giving her a warm hug and kiss in greeting.