Catherine, Princess of Wales, joined Britain’s King Charles III and other members of the royal family in celebrating Commonwealth Day on Monday, attending an event at London’s Westminster Abbey filled with performances from countries across the association.

King Charles hailed the work of the Commonwealth in bringing countries together as he and Britain's senior royals gathered at London's Westminster Abbey on Monday for annual celebrations for the international organisation he leads.

Britain’s King Charles III leaves after attending the annual Commonwealth Day Service at Westminster Abbey in London, Monday, March 10, 2025.(AP Photo/Kin Cheung) Joan Armatrading performs during the annual Commonwealth Day Service of Celebration at Westminster Abbey,

Kate Middleton paid a subtle tribute to Princess Diana and Queen Elizabeth II with her fashion as she attended the Commonwealth Day celebrations in London March 10.

Commonwealth Day was celebrated on 10 March and reaffirmed our shared commitment to the principles of unity, peace and equality. This year’s theme, ‘Together We Thrive’, was celebrated across 56 Commonwealth member countries,

The Princess of Wales and the King have returned to Commonwealth day celebrations after they both missed last year’s event due to their individual treatments for cancer.

Kate Middleton is set to attend the Commonwealth Day Service, a key event for the royal family. All about the Princess of Wales' RSVP next week.