Essex and Kent will compete for the Mike Denness Challenge Shield in future matches between the two counties in memory of the former England captain.
Former batsman Denness, who is the only Scotsman to have captained England, died in April 2013 aged 72 after a long battle with cancer.
He was part of a Kent side that dominated the county game in the early and mid-1970s while he spent the final four years of his career at Essex, where he won the 1979 County Championship.
The shield will be contested in all matches between the pair during a campaign, with two points awarded for LV= County Championship wins and one for limited-overs triumphs. The team that accumulates the most points at the end of the season will be awarded the shield.
Kent Cricket president and former team-mate of Denness, Graham Johnson, said: “Mike was an outstanding cricketer for Kent, Essex and England and had the rare distinction of captaining neighbouring counties.
“He holds a special place in the memories of both counties and is greatly missed. We thought it wholly appropriate to honour his memory in this manner.”
Essex chief executive Derek Bowden added: “Mike became a key member of the Essex squad during his time here and is still remembered for his achievements and the huge impact he had on our cricket, just as he had at Kent.
“He was an outstanding cricketer and we are very pleased to be supporting the creation of the Mike Denness Challenge Shield in his memory.”