Middleton — who scaled her royal schedule back last year due to her cancer diagnosis — joined Prince William, King Charles, Queen Camilla, Princess Anne, Prince Richard, Duke of Gloucester and Birgitte, the Duchess of Gloucester, for the commemoration.

It's been two years since Kate Middleton joined the royal family for Commonwealth Day. Today marked her grand return—and she chose a Catherine Walker repeat for the occasion.

Kate Middleton attended the Commonwealth Day Service, marking her first appearance at the event in two years after undergoing cancer treatment. Dressed in a red Catherine Walker dress, her presence signified her return to full royal duties following her remission announcement in January.