Paul Burrell hasn't spoken to Princess Diana's sons since her death 20 years ago.

Paul Burrell

Paul Burrell

The 58-year-old former butler to the late royal has revealed that he lost complete communication with Prince William, 34, and Prince Harry, 32, after Diana passed away in 1997 in a car crash in Paris, but he would love to meet with them again.

He would also wishes to tell William's wife, Duchess Catherine, how Diana made being a royal in the public eye "more comfortable".

Speaking on Australia's Channel 7 show, 'Sunrise', he revealed:

"I haven't spoken to them since their mother died in 1997," he told the programme.

"But I'd love to speak to them.

"And I'd love to tell Catherine about the incredible woman who changed all the rules to make her life more comfortable.

"To give her a better life as a royal. It's what Diana did."

Burrell - who recently came out as gay when he married his partner of 10 years Graham Cooper - doesn't have a bad word to say about the British royal family and isn't sure why they've lost contact.

Asked why they haven't been in touch, he said: "I don't know why (they haven't contacted me).

"(But) think about the system. The whole establishment is up against me because I'm the outsider.

"I belong in Diana's world. I'm the one who got away.

"You've never heard me say anything disrespectful about the royal family or the Queen.

"We have a wonderful monarch. She's 91 on Friday (21.04.17), long may she reign."

Burrell also praised William and Harry for continuing their mother's legacy with their charity work and following her "hopes and dreams".

He said: "I think they are wonderful.

"They are following in their mother's footsteps. She had them for long enough to instil her hopes and dreams and ideals. They are now the product of Diana."