Christine Keeler, the British model embroiled in the 1960s Profumo affair in the UK, has died aged 75.
Her son Seymour Platt said on Facebook Ms Keeler had been ill for several months with chronic obstructive pulmonary disease.
"There was a lot of good around Chris's rather tragic life, because there was a family around her that loved her," he told the Guardian.
Ms Keeler became famous for her part in the 1963 scandal, which shook Harold Macmillan's government.
At the height of the cold war, the-then teenager had an affair with Conservative cabinet minister John Profumo and a Russian diplomat at the same time.
Mr Profumo was forced to resign after lying about the affair to Parliament.
Her family said she passed away on Monday at the Princess Royal University Hospital near Farnborough, south-east London.
In his Facebook tribute, Mr Platt said: "My mother, the grandmother to my beautiful little girl, passed away late last night.
"She suffered in the last few years with Chronic Obstructive Pulmonary Disease but lost the fight.
"As many of you know my mother, Christine Keeler, fought many fights in her eventful life, some fights she lost but some she won.
"She earned her place in British history but at a huge personal price. We are all very proud of who she was."