Kate Middleton joined by kids George, Louis and Charlotte at Trooping the Colour

The Wales siblings joined their parents William and Kate the annual royal event.

June 15, 2024, 6:36 AM

Prince George, Princess Charlotte and Prince Louis joined their parents Prince William and Kate Saturday for an annual royal event.

The Wales siblings joined their parents at Trooping the Colour, the annual military parade marking the official birthday of their grandfather, King Charles III.

During the parade, George, 10, Charlotte, 9, and Louis, 6, rode with their mom in a state carriage down the Mall.

PHOTO: Britain's Catherine, Princess of Wales, Prince George, Princess Charlotte and Prince Louis attend the Trooping the Colour parade to honour Britain's King Charles on his official birthday in London, June 15, 2024.
Britain's Catherine, Princess of Wales, Prince George, Princess Charlotte and Prince Louis attend the Trooping the Colour parade to honour Britain's King Charles on his official birthday in London, June 15, 2024.
Hollie Adams/Reuters

The siblings were seen looking out the windows of the carriage and waving to crowds gathered to take part in this year's festivities.

PHOTO: Prince George of Wales and Princess Charlotte of Wales wave during Trooping the Colour, June 15, 2024, in London.
Prince George of Wales and Princess Charlotte of Wales wave during Trooping the Colour, June 15, 2024, in London.
Mark Cuthbert/UK Press via Getty Images
PHOTO: Princess Charlotte and Prince Louis attend the Trooping the Colour parade to honour Britain's King Charles on his official birthday in London, Britain, June 15, 2024.
Princess Charlotte and Prince Louis attend the Trooping the Colour parade to honour Britain's King Charles on his official birthday in London, Britain, June 15, 2024.
Hollie Adams/Reuters
PHOTO: Princess Charlotte of Wales and Prince George of Wales during Trooping the Colour at Buckingham Palace, June 15, 2024, in London.
Princess Charlotte of Wales and Prince George of Wales during Trooping the Colour at Buckingham Palace, June 15, 2024, in London.
Chris Jackson/Getty Images

After they finished their carriage ride, George, Charlotte and Louis were seen alongside Kate watching the rest of the parade from a window at Buckingham Palace.

PHOTO: Catherine, Princess of Wales with her children, Princess Charlotte, Prince George and Prince Louis at House Guards Parade for the King's Birthday Parade in London, June 15, 2024.
Catherine, Princess of Wales with her children, Princess Charlotte, Prince George and Prince Louis at House Guards Parade for the King's Birthday Parade in London, June 15, 2024.
Sgt Donald C Todd/UK MOD

The siblings then joined William and Kate and other senior members of the royal family on the balcony of Buckingham Palace, where they watched the military flyover.

PHOTO: Britain's King Charles III, Queen Camilla, Prince George, Prince William, Prince Louis, Catherine, Princess of Wales, Princess Charlotte on the balcony of Buckingham Palace after attending the "Trooping the Colour" in London, June 15, 2024.
Britain's King Charles III, Queen Camilla, Prince George, Prince William, Prince Louis, Catherine, Princess of Wales, Princess Charlotte on the balcony of Buckingham Palace after attending the "Trooping the Colour" in London, June 15, 2024.
Henry Nicholls/AFP via Getty Images

Trooping the Colour marked the first public appearance for Kate, 42, since December, when she and William and their children attended a Christmas Day service in Sandringham.

Shortly after that appearance, Kate was hospitalized in mid-January for what Kensington Palace described as a "planned abdominal surgery."

After taking time off from public duties to recover, Kate shared in a recorded video message in March that she had been diagnosed with cancer. She said at the time that the cancer had been discovered in post-operative tests after her abdominal surgery.

PHOTO: Britain's Catherine, Princess of Wales, arrives to Horse Guards Parade for the King's Birthday Parade "Trooping the Colour" in London, June 15, 2024.
Britain's Catherine, Princess of Wales, arrives to Horse Guards Parade for the King's Birthday Parade "Trooping the Colour" in London, June 15, 2024.
Justin Tallis/AFP via Getty Images

The type of cancer has not been disclosed. According to Kensington Palace, Kate started a course of preventative chemotherapy in late February.

In announcing her diagnosis, Kate described how it had impacted her family, saying, "This of course came as a huge shock, and William and I have been doing everything we can to process and manage this privately for the sake of our young family."

PHOTO: Britain's Catherine, Princess of Wales, shelters from the rain as she walks with her children Prince George of Wales, Princess Charlotte of Wales and Prince Louis of Wales during the 'Trooping the Colour' in London, June 15, 2024.
Britain's Catherine, Princess of Wales, shelters from the rain with an umbrella as she walks with her children Prince George of Wales, Princess Charlotte of Wales and Prince Louis of Wales during the 'Trooping the Colour' in London, June 15, 2024.
Justin Tallis/AFP via Getty Images

On Friday, Kate shared her first update on her health since announcing her diagnosis.

"I am making good progress, but as anyone going through chemotherapy will know, there are good days and bad days," Kate said in a written message shared by Kensington Palace. "On those bad days you feel weak, tired and you have to give in to your body resting. But on the good days, when you feel stronger, you want to make the most of feeling well."

PHOTO: Britain's Catherine, Princess of Wales, arrives with Princess Charlotte of Wales and Prince George of Wales and Prince Louie of Wales to Horse Guards Parade for the King's Birthday Parade 'Trooping the Colour' in London, June 15, 2024.
Britain's Catherine, Princess of Wales, arrives with Princess Charlotte of Wales and Prince George of Wales and Prince Louie of Wales to Horse Guards Parade for the King's Birthday Parade 'Trooping the Colour' in London, June 15, 2024.
James Veysey/Shutterstock

Kate said her treatment will continue "for a few more months," adding, "On the days I feel well enough, it is a joy to engage with school life, spend personal time on the things that give me energy and positivity, as well as starting to do a little work from home."

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