Queen Elizabeth may have kept the royal family's secrets from being aired at the trial of Princess Di's butler, but not before he told all to police.

And now, the royal dirty laundry is all over a British tabloid.

According to a bombshell statement Paul Burrell gave police after being accused of stealing Diana's possessions, the "People's Princess" would meet one lover wearing only a fur coat and jewelry.

"She was wearing sapphire-and-diamond earrings and looked absolutely stunning," Burrell told cops, The News of the World reported yesterday.

"She went upstairs and took all her clothes off and went out wearing a fur coat to meet Hasnat Khan," a heart surgeon.

Burrell said he smuggled Di's lovers into Kensington Palace under a blanket or in a car trunk.

He also told cops that:

* Diana took sleeping pills prescribed to female members of her staff.

* Her lover Dodi Fayed, who was killed with her in a 1997 car crash, had a cocaine problem.

* His duties as butler included buying "girlie" magazines for a pre-teen Prince William. Burrell said William was "very interested in them, notwithstanding his early age."

* Prince Charles once threw a book at him because the butler had informed Diana of his whereabouts.

* Charles also sneered at Diana's choice of clothing, saying she looked like a stewardess when she wore plaid, and a member of the Mafia when she wore a particular black-and-white dress.

* Charles also ordered his valet to hold a specimen bottle when he had to give a urine sample during a hospital stay.

Burrell had been on trial for taking some of Diana's possessions, but the case was thrown out last week when the queen suddenly revealed that he had told her that he had taken the things for safe keeping.

To diffuse further bad publicity, the royals may consider paying Burrell's legal costs.

Meanwhile, The Sun reported in London that Burrell is in negotiations to give a TV interview about his ordeal that could net him more than $150,000.

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