"Jack died peacefully on Friday 10 July at the age of 85. He was at home in Northumberland, with his family by his side. As well as a friend to many, he was a much-adored husband, father, grandfather and great-grandfather", a statement from his family said.
The Leeds star was diagnosed with lymphoma last year and also battled dementia.
English clubs, celebrities, and fans have expressed their condolences to Charlton's family on Twitter, paying homage to his merits.
— Manchester United (@ManUtd) July 11, 2020
Our deepest condolences go to all the Charlton family for their immensely sad loss. pic.twitter.com/rkVjsYDVSF
— rattycastle (@rattycastle) July 11, 2020