Annabelle Neilson had passed away on Thursday, July 12 and the cause of death of the Ladies of London star has finally been revealed.
A spokesperson for the Westminster Coroner's Court has confirmed the cause of death to Radar Online, revealing that she died of "cerebrovascular accident" or a stroke.
The tragic death of the reality star came as a shock to family members who have recently spoken out about their loved one.
In a statement to Rader Online, the late actress' sister Camila Neilson claimed that Annabelle died of a heart attack.
Very sadly, we have been informed today that my sister Annabelle, died as a result of a heart attack at home last Thursday, It has come as a complete shock, as she had many plans having recently returned from Spain. My parents and I are devastated and shocked by this news. We would ask the media to respect the privacy of our family and Annabelle's close friends during this very difficult time. We will not be making any further statement at this time. We thank you for your consideration.
As we previously reported, the London Metropolitan Police confirmed that officers were called to Annabelle's address on July 12 after a woman was "found deceased at the location."
The unexpected death of Annabelle, who was once briefly married to Nat Rothschild from 1994 to 1997, had been the talk of the entertainment world over the weekend as her pals had just met her at her former boyfriend Lord Edward Spencer-Churchill's wedding to Kimberly Hammerstroem.
Rest In Peace Annabelle.