Britain Marks King Charles III's Official Birthday with Trooping the Colour

Britain marks the official birthday of King Charles III each June with the spectacular Trooping the Colour ceremony, even though the monarch was born on November 14, 1948. This year's ceremony took place on Saturday, June 13, 2026. The tradition of celebrating a British sovereign’s official birthday in June dates back to the reign of King George II in the 18th century. George II was also born in November, when Britain’s weather was often unsuitable for large outdoor celebrations. To ensure better conditions for military parades and public festivities, he combined his birthday celebrations with the annual Trooping the Colour ceremony held during the summer months. The custom has continued ever since and is now observed by British monarchs regardless of their actual birth date, making Trooping the Colour one of the most important events in the royal calendar.

What is trooping the colour?

Trooping the Colour has marked the official birthday of the British King or Queen for more than 260 years and is also known as The King’s Birthday Parade. It is one of Britain’s oldest royal and military traditions and remains a major national celebration. The event is a spectacular display of military precision and royal pageantry. More than 1,400 soldiers, around 200 horses and approximately 400 musicians typically take part in the ceremony, while thousands of spectators line The Mall outside Buckingham Palace, waving Union Jack flags and watching the procession. The word “colour” refers to a regiment’s flag, which historically served as an important rallying point for soldiers on the battlefield. Before modern communications, troops relied on these flags to identify their unit and maintain formation during combat. The term “trooping” comes from the practice of carrying, or “trooping,” the regimental colours through the ranks so soldiers could recognise their flag. Young officers would march with the colours displayed prominently, allowing troops to become familiar with their regiment's insignia. Each year, a different regiment’s colour is featured during the ceremony. In 2026, the colour being trooped is the King’s Colour of the Grenadier Guards. The regimental flag was presented by King Charles earlier this week during a ceremony at Buckingham Palace and will be escorted on Horse Guards Parade by guardsmen from the King’s Company. The Grenadier Guards are the most senior regiment of the Foot Guards and are renowned for their distinguished military history and ceremonial role. Their participation adds particular significance to this year’s parade, which will see hundreds of guardsmen in scarlet tunics and bearskin caps perform the precision drill for which the ceremony is famous. Trooping the Colour remains the ceremonial event associated with the monarch’s official birthday, combining royal pageantry, military excellence and centuries of British tradition. The celebration includes a grand procession featuring members of the Royal Family, military displays on Horse Guards Parade and concludes with the Royal Family appearing on the Buckingham Palace balcony to watch the traditional Royal Air Force flypast.