The trusted inner circle who are rallying round Prince Harry
One of Britain's wealthiest young men, Arthur Landon is estimated to be worth more than £200 million after inheriting the money when his father Brig Tim Langdon died in 2007.
The film-maker (pictured with Guy Ritchie), who has also dabbled in modeling, is a close friend to both Harry and William. He attended the Duke and Duchess of Cambridge's wedding last year.
Arthur, 30, was educated at at Ampleforth and Bristol University. He joined Harry on the headline-grabbing trip to Las Vegas, but says he wasn't present when the photos were taken