Iraqi-born philanthropist Naim Dangoor has donated £1.1million to Cancer Research in memory of his wife Renée, who died from breast cancer two years ago.
The 95-year-old's gift will fund the "About Cancer" section of the CancerHelp UK website for the next five years.
Website head Liz Woolf said: "Dr Dangoor's very generous contribution will help us ensure that this particularly important section of the website can make it even easier for cancer patients and their families to find a wealth of easy to understand information on a wide range of issues."
Dr Dangoor said: "We understand all too well how being diagnosed with cancer can affect a person and their family.
"Having access to a source of up to date information that is clear and concise can be an invaluable support at a really difficult time.
"To be able to help people who are going through the same thing we did is the best way I can think of to honour my late wife's memory."
Dr Dangoor and Renée, a former Miss Baghdad, fled Iraq in the 1960s to escape antisemitic persecution.
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