Tara Palmer Tomkinson has been found dead at her London home. She was 45.
The former IT girl and socialite, who is the god-daughter of the Prince of Wales, was discovered on Wednesday afternoon.
In January 2016, she revealed that she had been diagnosed with a brain tumour.
Paying tribute, the Prince of Wales and Duchess of Cornwall said they were “deeply saddened” by the news.
Police are currently treating the death as unexplained.
“Enquiries into the circumstances are ongoing,” a Met Police statement read. “The coroner has been informed.”