The Duke and Duchess of Sussex have since stepped back as senior royals in 2020 and eventually moved to California with Prince Archie and Princess Lilibet.
It is thought Harry last visited his father in February 2024, after the public announcement of his cancer diagnosis, when Harry boarded a plane to visit the King at Clarence House for a brief meeting.
At the time, Harry cleared his diary and made the journey to the UK alone, with the Duchess of Sussex and their children remaining at home in California.