Prince Harry's attendance at King Charles' Coronation will have an impact on security measures - which will be assessed on a "case-by-case basis".
The Duke of Sussex will be part of the large congregation inside Westminster Abbey on May 6 watching his father and Queen Camilla being crowned - but he won't be with his wife.
Meghan Markle has decided to remain at home in California with their children, Prince Archie and Princess Lilibet, while her husband make a a 'fairly quick' trip to the UK next month.