It had been unclear whether Prince Harry would attend his father's coronation, but it is now confirmed that he will be at the Abbey, meaning King Charles will have both his sons present for the ceremony.
The date is also the fourth birthday of Prince Harry and Meghan's son, Prince Archie, who will remain in the US with his mother.
The couple issued a statement along the same lines as the palace: "The Duke of Sussex will attend the Coronation service at Westminster Abbey on May 6th. The Duchess of Sussex will remain in California with Prince Archie and Princess Lilibet."