The teenage daughter of the Marquis of Queensberry died on a house party after a two-day drug and alcohol abuse, heard a judicial investigation.
Lady Beth Douglas, 18, the youngest child of David Douglas, the 88-year-old 12th Marquis, was found with needle marks in her arm.
Her friend thought she had fallen asleep on a couch, but turned 999 when he was later unable to revive her at the flat in Notting Hill, West London.
The teenage daughter of the Marquis of Queensbury died at a house party after a drug and alcohol mass of two days. Lady Beth Douglas, 18, the youngest child of Lord David, the 12th Marquis of Queensbury, was found with needle markers in her arm
He discovered that she had injected heroin, possibly for the first time. Tests also revealed cocaine and morphine in her blood.
Her father criticized detectives for failing to discover the identity of the dealer who gave her the drugs or even contacting other people attending the party.
Beth & # 39; s death is the last tragedy that befalls a colorful aristocratic dynasty that has endured centuries of misfortune and that once the & # 39; Queensberry Curse & # 39; was named.
In 1895, the writer and spirit Oscar Wilde (L) was jailed for gross shamefulness after a legal battle with the 9th Margrave, whose son Lord Alfred Douglas (R), nicknamed & # 39; Bosie & # 39 ;, was the beloved of Wilde
Lady Beth Douglas, 18, the youngest child of Lord David, the 12th Marquis of Queensbury, was found with needle markers in her arm
The 9th Marquis played a leading role in the downfall of Oscar Wilde and he also gave his name to the official rules of boxing after he had approved changes in the sport in 1867 which largely ended bald battles.
More recently, the family has a marriage link with the Osama Bin Laden family.
Beth, known to family and friends as Ling Ling & # 39 ;, was the only daughter of the Marquis's third wife, the Taiwanese artist Hsueh-Chun Liao.
A family with tragedies that go back to the Middle Ages
The & # 39; Curse of the Queensberrys & # 39; dates back to the Scotland of the Dark Ages when Sir William Douglas died in 1298 in the Tower of London after he had fought against the English for William Wallace.
His son, Sir James Douglas, a confidant of Robert de Bruce, died in 1330 and took the heart of his deceased leader on a pilgrimage to the Holy Land.
The family was excavated in 1358. The 2nd count died in the battle of Otterburn in 1388, and the 4th count was killed four years later in the battle of the hill of Homildon. The title was elevated to the Marquis by Charles II in 1681.
In 1858 the 8th Margrave shot himself dead with his own cannon while hunting rabbits. Two of his sons also died violent deaths.
In 1895, the writer and spirit Oscar Wilde was convicted of gross shamefulness after a legal battle with the 9th Margrave, whose son Lord Alfred Douglas, nicknamed & # 39; Bosie & # 39 ;, was Wilde & # 39; s lover. The case went to court after he unsuccessfully sued the Marquis because he wrote that he was a sodomite & # 39; used to be.
The current 12th Margrave, David Harrington Angus Douglas, is married three times and produces eight children of four women. Caroline Carey, half-sister of his illegitimate son Ambrose Carey, married Salem Bin Laden, a brother of terrorist Osama. When he died in a plane crash she married another brother, Khaled.
Lady Alice Douglas married Simon Melia, who was serving a prison sentence for his role in an armed robbery
In 1995, Lady Beth Douglas's half-sister, Lady Alice Douglas, married Simon Melia, an armed robber who she met during a drama series in a prison. They divorced when he deceived her. In 2009 Beth's semi-brother, Milo Douglas, 34, committed suicide by jumping from a tower block.
She was a student and a talented violinist, but struggled with drug and alcohol addiction and was treated for mental illness.
Westminster Coroner's Court heard that she died after she went to a house party in the £ £ £ 2 million Notting Hill flat in March.
Her friend Jenan Karagoli, 21, said that the couple had spent at least two days drinking and taking drugs while staying in hotels.
At the house party he went out to buy wine after she complained about drinking cognac. He returned and found that she apparently fell asleep on a sofa where he joined her.
Mr. Karagoli admitted that she had asked him to get heroin for her. He said: & # 39; I really did not want to. She sniffed heroin back before I knew her.
& # 39; I said I did not know anyone. She called and said that we were going to a party. & # 39;
Mr. Karagoli, who had taken anti-anxiety drugs and cocaine, said he did not know who had delivered the deadly drug.
She asked me to give her a bottle of red wine, & # 39; he said. & # 39; When I returned, I saw the person who lived there in a chair with a rupture pipe. Ling Ling was sleeping on the couch. & # 39; He described how he later tried to wake her up and said: & # 39; I could not wake her up. The man in the flat said she had taken heroin. I just grabbed her arms and saw a small tuft of dots. & # 39;
The research showed that Beth had been known in mental health care since she was thirteen, when she started self-harm and at the age of 17 was divided into the mental health law.
Lord Queensberry criticized the police for not recognizing the dealer who gave his daughter the heroin and possibly helping to inject it.
He said: & # 39; There was a lot of drug use in this flat. I was worried because in this flat where my daughter died, it seems to be related to the injection of heroin.
& # 39; The owner of the flat is not here to claim anything. And the other people at the party, the police did not contact them. I am almost certain that this is the first time that my daughter, who has used many drugs … but had not had intravenous heroin before my knowledge.
No one takes his first intravenous injection of heroin without help. Someone helped her and nobody seems interested in who that is. & # 39;
The study concerned Beth & # 39; s cause of death as a heart disease and cocaine and heroin poisoning.
Coroner Dr. Shirley Radcliffe apologized to the family because he was not able to answer all your questions & # 39 ;. She said: & # 39; It is not possible to say what the cause of death was – cocaine intake, heroin intake or a combination of the two medications.
& # 39; The police found no needles or syringes. As far as they are concerned, there is no further action that they can take in this matter.
& # 39; They have no evidence of a crime and they did not have identification data for the couple who were there that night. & # 39;