The King will attend his first Trooping the Color since becoming monarch last year on Saturday.
Although the annual celebration, which has been held for over 200 years, will stay substantially unchanged, adjustments are likely to reflect the new monarch’s reign and the modern era.
Here are six major changes, we are likely to witness during the event.
Monarch riding on horseback
The King will ride a horse in the Trooping the Color ceremony this year.
The first major alteration, as confirmed by the Palace, will be Charles’ participation in the military parade.
It will be the first time a monarch has ridden in the procession since the late Queen Elizabeth II did it in 1986.
Burmese, the late Queen’s favorite steed, was utilized during Trooping. When the horse was retired at Windsor, the late Queen decided she would ride by carriage instead of training another.
Prince Edward’s Riding debut
Prince Edward, the King’s youngest brother, is expected to ride in the parade.
For the first time, the new Duke of Edinburgh is anticipated to ride with his royal brothers and nephew Prince William.
Edward is the colonel of the newly established London Guards, who will be present at the event this weekend.
Change of royal uniforms
Last week, Prince William was photographed enduring the heat in full military dress, and another significant shift will be in the royals’ clothing on Saturday.
During the Trooping rehearsals, William wore a bearskin cap and the full red military dress for the first time as Colonel of the Welsh Guards.
The uniforms will bear the cyphers of both the late Queen and King Charles, which is a slight difference.
Royals appointed as aides-de-camp to the King will be permitted to wear the insignia.
Other royals who served as aides-de-camp to the late Queen and are still employed by the new King will wear both cyphers on the day.
For Saturday’s event, the Welsh Guards have written a few new tunes.
Major Lauren Petritz-Watts’ composition will be performed at Trooping the Color for the first time.
When Prince William ascended to the throne, the King turned over his post as Colonel of the Welsh Guards to him.
Change of national anthem
The most noticeable alteration will be in the national anthem.
Viewers are accustomed to hearing ‘God Save the Queen,’ but with King Charles, royals and spectators will sing ‘God Save the King’ for the first time at Trooping the Color.
Kate and Camilla’s roles
Both the now-Queen and Princess of Wales wore military uniforms during last year’s Trooping the Color. This year, however, neither will.
According to the Daily Mail, Kate, who is now the Colonel of the Irish Guards, will ride in a carriage with her three children, Prince George, Princess Charlotte, and Prince Louis, and will not wear the military uniform.
Queen Camilla, who now retains Prince Andrew’s former title of Colonel of the Grenadier, will not wear a military uniform either.