Tara Palmer-Tomkinson died from a perforated stomach ulcer.

The 45-year-old socialite's cause of death has been a hot topic of conversation since her body was found by her cleaner at her home in west London on February 8 but her sister has now confirmed that she passed away in her sleep from ''natural causes.''

Taking to her Twitter account on Wednesday (15.02.17), Santa Montefiore wrote in a series of tweets: ''I've been so touched by the warm response to Tara's death.Thank you from the whole family. But I'd like to clarify a couple of points...

''Today the Coroner's report states that Tara died of natural causes - a perforated ulcer. She did not have a brain tumour. (sic).''

Santa is adamant that Tara had spent the final days of her life in ''high spirits'' and had started making plans about her future, and had even penned a new song.

She explained: ''Tara's good friends & family know that she was in high spirits in her last days. She had plans, trips & had written a moving new song. (sic)''

The brunette beauty had told the world last year that she was convinced she had just ''weeks to live'' after she was told she had a brain tumour and was suffering from a rare auto-immune condition which saw abnormal antibodies attack the cells and tissues.

However, it's not known whether Tara had the tumour, which she said was on pituitary gland, removed prior to her death or whether she never actually had one.

It was recently revealed that the former model had joked about her death just days before she met her ultimate end with her close friend Emily Maddick.

Writing in this week's Grazia magazine, of which she's assistant editor, Emily said: ''After the call she sent her final text to me: 'Hey Crystals [Tara's nickname for Emily], if I do suddenly go... u make sure you keep hanging out in graveyards... otherwise I will come back and spook u!! Joke!! I have a long life and I fully believe it. (sic)' ''

Tara's family previously revealed a private funeral will be held for her in due course.