Kate Middleton returned to the public eye at Trooping the Colour on June 15, with Prince William and their kids by her side. The occasion marked her first formal engagement since her cancer diagnosis.

Kate Middleton has made her much-anticipated return to the spotlight.

The Princess of Wales, who has been receiving preventative chemotherapy after being diagnosed with cancer, joined husband Prince William and kids Prince George, 10, Princess Charlotte, 9, and Prince Louis, 6, for the Trooping the Colour on June 15—which commemorates King Charles III‘s birthday—in her first formal appearance since Christmas Day.

Ahead of the festivities, Kate was photographed arriving with her family at Buckingham Palace, to join Charles and his wife Queen Camilla for the festivities.

To kick off the celebrations, Charles and Camilla rode in a carriage, while Kate, George, Charlotte and Louis followed in a separate carriage close behind. Meanwhile, William rode on horseback alongside Princess Anne and Prince Edward.

While Charles has made a few public appearances in the months since sharing his diagnosis in February, Kate has remained out of the spotlight amid her ongoing health journey with the exception of a Match 22 video opening up about her private battle.

And Kate, who confirmed she was attending the Trooping of the Colour one day before the event, also took the opportunity to share how she is doing.

“I am making good progress, but as anyone going through chemotherapy will know, there are good days and bad days,” Kate said in her June 14 post. “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.”

Kate Middleton, Trooping the ColourHENRY NICHOLLS/AFP via Getty Images

The 42-year-old continued, “My treatment is ongoing and will be for a few more months. 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.”

And while confirming her attendance at Trooping the Colour as well as her desire to join a few more public engagements over the summer, she also conceded she is “not out of the woods yet.”

Kate Middleton, Prince Louis, Princess Charlotte, Trooping the Colour 2024

Samir Hussein/WireImage

“I am learning how to be patient, especially with uncertainty,” she continued, in addition to sharing her gratitude for the public’s support. “Taking each day as it comes, listening to my body, and allowing myself to take this much needed time to heal.”

To see more photos of the royal family at Trooping the Colour 2024, keep reading…

Prince Louis, Prince William, Kate Middleton, Princess Charlotte, Prince George, King Charles, Queen Camilla, Trooping the Colour 2024Gareth Fuller/PA Images via Getty Images

All Smiles

Kate Middleton smiled as she appears with the royal family at Trooping the Colour, an annual ceremonial military event celebrating King Charles III‘s birthday. It marked the Princess of Wales’ first public royal engagement since December 2023, and her first major appearance since revealing her cancer diagnosis in March 2024.

Prince Louis, Prince William, Kate Middleton, Princess Charlotte, Prince George, Trooping the Colour 2024Samir Hussein/WireImage

Waving to Fans

The Wales family waved at the crowd from a Buckingham Palace balcony.

Prince Louis, Prince George, Trooping the Colour 2024Chris Jackson/Getty Images

Brotherly Moment

Prince George, 10, and Prince Louis, 6, had a chat.

Prince William, Kate Middleton, Princess Charlotte, Prince George, Prince Louis, Trooping the Colour 2024Gareth Fuller/PA Images via Getty Images

Mom & Dad

Prince William and Kate Middleton shared a sweet moment.

Prince Louis, Prince William, Kate Middleton, Princess Charlotte, Prince George, Trooping the Colour 2024Mark Cuthbert/UK Press via Getty Images

Standing Tall

Prince William and Kate Middleton appear on the Buckingham Palace balcony with kids Prince George, 10, Princess Charlotte, 9, and Prince Louis, 6.

Prince Louis, Prince William, Kate Middleton, Princess Charlotte, Prince George, Trooping the Colour 2024Mark Cuthbert/UK Press via Getty Images

Kate Middleton, Trooping the ColourHENRY NICHOLLS/AFP via Getty Images

Royal Arrival

Kate MiddletonPrince WilliamPrince GeorgePrince Louis and Princess Charlotte are seen arriving at Trooping the Colour.

King Charles III, Queen Camilla, Trooping the Colour 2024John Phillips/Getty Images

Birthday Festivities

King Charles III was accompanied in a carriage by his wife, Queen Camilla.

Kate Middleton, Prince Louis, Princess Charlotte, Trooping the Colour 2024Samir Hussein/WireImage

Carriage Ride

Kate and her kids are seen inside their carriage.

Prince George, Princess Charlotte, Trooping the Colour 2024Mark Cuthbert/UK Press via Getty Images

All Grown Up

Prince George and Princess Charlotte waved to royal fans on the ride.

Prince Louis, Trooping the Colour 2024Mark Cuthbert/UK Press via Getty Images

Royally Sweet

Prince Louis was spotted in his signature style.

Kate Middleton, Prince Louis, Trooping the Colour 2024Yui Mok/PA Images via Getty Images

Family Day

The Princess of Wales, who’s been undergoing a course of preventative chemotherapy, sat beside her youngest child during their carriage ride.

Prince William, Prince Edward, Princess Anne, Trooping the Colour 2024Chris Jackson/Getty Images

Keeping Tradition

Prince William was joined by Princess Anne and Prince Edward as they rode on horseback.

Kate Middleton, Trooping the Colour 2024Mark Cuthbert/UK Press via Getty Images

Kate Middleton’s Arrival

The Princess of Wales arrives at her first formal appearance in six months. Kate appeared at the Trooping the Colour parade two months after revealing she is undergoing cancer treatment.