The King will walk behind the Queen's coffin with Prince Harry and Prince William when it makes its journey from Buckingham Palace to Westminster Hall where Queen Elizabeth II will lie in state.
King Charles III, the Prince of Wales and the Duke of Sussex will follow the coffin on foot as it leaves Buckingham Palace today. They will be joined by the Duke of York, The Princess Royal and the Earl of Wessex.
Anne the Princess Royal's son Peter Phillips and her husband Vice Admiral Sir Tim Laurence will also walk in the procession, as well as the Duke of Gloucester and the Earl of Snowdon.