Annabelle Nielson family have revealed the Ladies Of London star passed away from a heart attack.
Her sister Camila shared the news in a statement to E! News, confirming the cause of her death.
'Very sadly, we have been informed today that my sister Annabelle, died as a result of a heart attack at home last Thursday,' she revealed.
'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.'
She then added: 'We will not be making any further statement at this time. We thank you for your consideration.'
The 49-year-old reality star was found dead at her London home last Thursday.
Before appearing on Ladies Of London, she previously worked as a model and became friends with supermodels Kate Moss and Naomi Campbell.
Celebrity tributes poured in for Annabelle following the news of her death.