Seems that he is from a royal bloodline and well connected.

“I have been looking for a way into this one for years, but could never find an easy path—though I didn't look very hard. I had read the basic Wikipedia story several times, but it has been scrubbed of most useful information. The alternative theories are also trash. Yes, I found the usual numerology in the mainstream story, with aces and eights everywhere, indicating a fake, but no easy hook beyond that. But for some reason today I found the door. That door is Trevor Rees-Jones, the bodyguard who survived the car crash. He was in the front passenger seat and was allegedly saved by the airbag. I saw that name as a peerage name immediately, so I followed that clue…”

Miles Mathis: Yes, Diana Faked Her Death

http://mileswmathis.com/diana.pdf