Peaches Geldof died of a heroin overdose, echoing the death of her mother 14 years earlier, according to reports.
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The Times of London is reporting that an inquest being held today will hear Peaches died from an overdose after becoming increasingly obsessed with her mother's death.
The 25-year-old was found dead at her family home last month.
The mother of two was caring for her 11-month-old son at the time.
Although at the time, no drug paraphernalia was found and police described the death as "not suspicious", there have been suggestions that someone may have searched the home and removed evidence before their arrival.
Her own mother, Paula Yates, died from a heroin overdose in 2000 and in her last message on Twitter, Peaches included a link to the picture of her with a smiling Yates and the words ''me and my Mum''.
Peaches' own battle with drugs has been public and friends were aware of her "dark side".
In 2010, Peaches was dropped from a lucrative modelling contract after pictures emerged of then 21-year-old naked and apparently high on heroin.
This followed an incident in 2008 when she was seen handing money to a known drug pusher and another incident, in the same year, where she supposedly left a drugs 'shopping list' in a London pub.
Despite this, the young mother had attempted to escape the London partying scene and had moved with her family to the countryside in Kent where she had experienced an "idyllic childhood".
But, like her mother, Peaches was known to try and dull her demons through drugs.
"Whenever Peaches was in trouble, she self-medicated because that was what she had done all her life," a friend told The Mirror in April.
"She really tried not to but this was just part of who Peaches was.
"She was very complicated. She desperately wanted to be a certain type of girl with a perfect life and a perfect family.
"But things just aren't like that.
"Peaches had a dark side. Everyone knew that, including her family who have been through hell with her drug problems over the past decade.
"In the last few weeks she seemed overwhelmed. She always kept a lot of plates spinning with her work and finances.
"She was the main bread-winner and that put her under a lot of strain.
"She also felt incredibly lonely. She was once so excited at moving to the Kent countryside where she remembers her early childhood for being so happy.
"But recently she wanted to return to London. She wanted to be nearer to her sisters and her friends."
A post-mortem proved inconclusive, however blood and tissue samples were sent off to a laboratory and tested for toxins.
It is said that the results from these tests have now been received by the coroner.
Geldof was laid to rest on Easter Monday in the same church where she married her husband Thomas Cohen two years ago. Her mother's funeral was also held at the same church fourteen years ago.