Leyton Orient have been left £150,000 by one fan in his will.
The London Evening Standard says John Burman died of cancer last May aged 55 after a lifetime spent following the O's. Born in Stoke Newington, he was a member of the Leyton Orient Supporters Club and a season ticket holder in the Tommy Johnston Stand.
The club will mark his passing and generosity by dedicating the League One match against Peterborough on Saturday in his memory.
Orient chairman Barry Hearn said: "This is a wonderful gesture from John who was by all accounts a remarkable man. He was a true Orient supporter and we will be celebrating his life on Saturday, while the significant money he has left will ensure that his legacy lives on and the club he so passionately supported can live on and continue to grow."
