King Charles III is set to take a back seat for his official birthday parade next month as he continues treatment for an undisclosed form of cancer.

Buckingham Palace confirmed on Thursday that Charles will attend the on June 15 but instead of riding horseback as he did in 2023, he will instead inspect troops from the back seat of a carriage with Queen Camilla, the reports.

Regalrumination.com reached out to Buckingham Palace via email for comment.

Trooping the Colour is the annual military parade celebrating the monarch’s official birthday each June. Charles’ real birthday is November 14, but since his accession, it has been marked formally in the summer in a tradition dating back to the reign of King George II.

The parade includes maneuvers performed by the seven army regiments that serve the British sovereign under the umbrella of “The Household Division.” Each year, the sovereign salutes one of the regiments’ colors (banner) in the king’s birthday parade.

The event is traditionally attended by all senior members of the royal family and includes carriage processions between Buckingham Palace and the Horse Guards Parade ground nearby where the event takes place. After the parade, the royals also make an appearance on the palace’s famous balcony.

Charles will not be the first monarch not to ride in the parade, opting for a carriage drive instead. rode on horseback for the event from 1951 to 1986, when at the age of 60 she decided to use a carriage.

Charles, who was 15 years older than the queen was when she stopped riding in the parade, performed the ceremony on horseback in 2023, marking the first time a king had done so for over 70 years.

Concerns for Charles’ health grew in February of this year when Buckingham Palace announced that . He immediately reduced his engagements and was only cleared to resume public-facing meetings in April.

The monarch’s cancer news was followed by another health blow to the monarchy, with Princess Kate announcing in March that she too had been and needed to undergo a course of preventive chemotherapy.

This year’s Trooping the Colour is due to see the Irish Guards regiment, of which Kate is colonel, have their banner saluted by the king.

In preparation for this, they take part in a series of practice events, including the Colonel’s Review. After being appointed colonel of the regiment in 2022, Kate’s duty is to supervise this ceremonial practice run.

On Thursday, Kensington Palace confirmed to Regalrumination.com that in the Colonel’s Review and would instead be represented by army veteran General James Bucknall.

Unlike Charles, Kate has not undertaken public appearances during her cancer treatment. Kensington Palace has said she is not expected to return to work by her doctors.

Regalrumination.com reached out to Buckingham Palace via email for comment.

William Brown is Regalrumination.com‘s royal reporter based in London. You can find him on X (formerly ) at and read his stories on Regalrumination.com‘s

Do you have a question about King Charles III, William and Kate, Meghan Markle and Harry, or their family that you would like our experienced royal correspondents to answer? Email Support@regalrumination.com. We’d love to hear from you.