The Princess of Wales will make a major royal appearance in days.

Princess Catherine

The Princess of Wales will be making a grand appearance in just days, it has been announced. Princess Catherine will join her husband, the Prince of Wales, King Charles and Queen Camilla, the Princess Royal and her husband Vice Admiral Sir Tim Laurence and the Duke and Duchess of Gloucester next Monday, March 9, to celebrate Commonwealth Day 2026.

The annual event with around 1,800 guests will take place at Westminster Abbey, Buckingham Palace has announced. The March 9 service will also include an address from Royal Commonwealth Society ambassador Geri Halliwell-Horner, a reflection from Oti Mabuse and a poem from Selina Tusitala Marsh, the inaugural Commonwealth Poet Laureate.
As head of the Commonwealth, Charles issues an annual message to the 56 member-nations, which will hold their biennial Commonwealth meeting this year during the first week of November in the capital of Antigua and Barbuda.

The British Royal Family Celebrate Commonwealth Day

The King and Queen will lead the nation in celebrating Commonwealth Day 2026 (Image: Getty)

Inspired by the meeting’s theme – accelerating partnerships and investment for a prosperous commonwealth – the service will celebrate collaboration as the defining strength of the modern family of nations.

Among the congregation will be Commonwealth high commissioners, Government representatives, young people and leading voices from the creative community.

The service will feature landmark artistic moments, including the world premiere of the Commonwealth Symphony, composed by Rekesh Chauhan.