The Duchess of Edinburgh is believed to be one of King Charles' "secret weapons" with a more prominent role set to be lined up for her.
Sophie has been given important and impactful visits in recent years on behalf of the monarchy, but they have been gone under the radar due to publicity surrounding more high-profile members of the royal family.
It is thought that she was particularly close to the late Queen Elizabeth II since joining the family in 1999 following her marriage to Prince Edward.
