The Princess of Wales was seen angrily staring down protesters as she travelled in a horse-drawn carriage with her children during the Trooping the Colour parade over the weekend.

Members of the anti-monarchy group, Republic, jeered as Princess Kate, Prince George, Princess Charlotte and Prince Louis travelled down The Mall during the procession for King Charles’ official birthday.

WATCH THE FOOTAGE IN THE VIDEO PLAYER ABOVE

Demonstrators were heard chanting “Not my King” while holding up umbrellas that spelt out the words ‘Stop the Reign’ and images of Andrew Mountbatten-Windsor with Jeffrey Epstein.

The group have made themselves known at dozens of royal events over the years, including the Commonwealth Day service in March, and Charles’ coronation.

In a video shared on social media, Kate looked less than impressed with the protestors as the carriage passed by.

She was seen briefly staring at the campaigners before turning to her children and smiling.

King Charles and Queen Camilla, led the carriage procession to Horse Guards parade, while Princess Kate and her children followed closely behind. Prince William, Prince Edward and Princess Anne were all observing tradition and taking part in the parade on horseback.

Despite the taunts, the royals remained professional and continue to smile and wave to to crowds, who had lined the streets from the early morning to catch a glimpse of the procession.

But George and Charlotte did appear to exchange a few concerned glances.

Kate and her children later joined other members of the royal family on the balcony at Buckingham Palace for the Royal Air flypast.

Also in attendance were Sir Timothy Laurence, Sophie, Duchess of Edinburgh, the Duke and Duchess of Gloucester and the Duke of Kent.

Trooping the Colour is held each June to celebrate the sovereign’s official birthday and features more than 1,400 soldiers, hundreds of horses and military musicians on Horse Guards Parade in central London.