Kenwright first joined the board at Goodison Park in 1989.
Everton chairman Bill Kenwright has died at the age of 78 following his battle with cancer, the club have announced.
Kenwright, who succeeded Sir Phillip Carter as chairman in 2004 after first joining the board at Goodison Park in 1989, had a cancerous tumour removed from his liver in August.
A statement on the club’s website said: “Everton Football Club is in mourning following the death of Chairman Bill Kenwright CBE, who passed away peacefully last night aged 78, surrounded by his family and loved ones…
“The club has lost a chairman, a leader, a friend, and an inspiration. The thoughts and prayers of everyone at Everton are with his partner Jenny Seagrove, his daughter Lucy Kenwright, grandchildren and everybody who knew and loved him.”
Everton announced earlier this month that the surgery had been “completely successful”, but complications meant Kenwright needed a lengthy stay in an intensive care unit before continuing his recovery at home.
Liverpool-born Kenwright was a successful theatre and film producer when asked to join the Everton board in 1989.
He bought a majority 68 per cent stake in the club in 1999 and became deputy chairman before replacing Carter in his current role.
In June this year, Everton owner Farhad Moshiri announced he had asked Kenwright to remain as chairman and help the club through a “period of transition”.
Kenwright had come under pressure from a section of fans who protested at how the club was being run.
It was announced last month that a deal to sell the club to American investment firm 777 Partners had been agreed.
The prospective new owners insisted last week that the takeover bid was still on track after it was reported they had failed to supply information to the Financial Conduct Authority (FCA) and said the process was ongoing.