A man fell to his death from a flat belonging to a German aristocrat during a cocaine-fuelled gay sex party, an inquest has heard.
Anthony Casey, 38, died after falling 60ft (18m) while partying at Count Gottfried von Bismarck's apartment in Chelsea, west London, on 23 August.
Coroner Dr Paul Knapman said that in the early hours of that morning, "there was a gay orgy going on".
Dr Knapman recorded a verdict of misadventure.
The court heard Mr Casey suffered multiple fractures, including severe skull fractures.
Pathologist Dr Kenneth Shorrock said an examination showed Mr Casey had been taking part in homosexual activity and tests showed significant levels of cocaine in his blood.
He said there were no marks to indicate Mr Casey had been assaulted, but commented he had "an overwhelming number of injuries that could mask signs".
Count von Bismarck told Westminster Coroner's Court on Thursday that he had not seen any homosexual activity.
But Dr Knapman said that "in common parlance, in the early hours of the morning, there was a gay orgy going on".
He added: "Nevertheless, this was conducted by consenting males in private."
Count von Bismarck was advised by the coroner that he did not have to answer any questions which he felt might incriminate him.
He agreed with Dr Knapman that he had had a small gathering of friends at his flat.
He said Mr Casey had asked him for the key to the roof terrace.
He initially had the impression that Mr Casey had come down from the roof, when he was told that he had fallen off.
Asked by the coroner if there had been any unpleasantness, threats or jealousies, the count replied: "No, nothing."
Four partygoers, including the count, have been told they will not face charges.
The death was investigated by the Metropolitan Police who described the fall as a "tragic accident".