The first major trophy for the club was the FA Cup in 1987.
John Sillett was the manager of the club who won the FA Cup in 1987.
The Sky Blues won their first major trophy in 1990 when they beat Spurs in the final at Wembley.
He began his career as a full-back and went on to win the First Division title with the club.
He played for two other teams before moving into management.
The 1987 FA Cup Final was broadcast on the BBC.
"Obviously the family are really sad about dad's passing but we are all so proud of him and what he achieved," the statement from Sillett's family said.
He was held in high regard by the football world because of his ability to spot things tactically, change them during a game and enhance the abilities of players.
Jimmy Hill's first signing at Coventry was Sillett, who became a millionaire after starting his career at Chelsea. He was part of the team that won promotion to Division Two in 1962-63 and went on to make 128 appearances for the Sky Blues.
Sillett was appointed a youth coach at Bristol City after leaving Coventry, where he was a player.
He returned to the club in 1991-2 after his time at Coventry came to an end, after he won the Third Division title with Hereford in 1974.
"I would have thought that was as good a final as there's been for a long time," Sillett said at the time. We had great faith in the boys and they went there and did well.
