At the time, she wrote: "'Hi all in Twitter land,hubby (Richard) has been in hospital since last week and we nearly lost him twice! I would like to thank all the medics @royalfree London for giving him great care and attention" (sic).
Richard is also survived by stepson Alex, 43, as well as children Michael and Jess from a previous relationship and had headed up the Amy Winehouse Foundation - which aims to help young people make "informed choices about alcohol" - as director and trustee.
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Amy shot to fame in her late teens with the release of her debut album Frank in 2003 before going on to enjoy further success with her sophomore album Back to Black in 2007.
However, her short life was plagued by addiction and Richard previously described the day she died as "the worst day of [his] life" and revealed he was the one who had to break the news to Janis.
Speaking ahead of the 10th anniversary of the tragedy in 2021, he said: "It was the worst day of my life. I got the phone call to say that Amy had gone, it was actually her cousin who phoned. And I had to tell Janis. I said to Janis 'I don't know what to say, she's gone.' And she looked at me, she thought I was talking about my mum because my mum died a month after Amy, my mum was seriously ill. I said 'No, no, no. Your baby's gone."