The former Tigers fly-half made more than 300 appearances for the club, before commentating on their matches for over 30 years.
Born in Brynamman in West Glamorgan in August 1948, Bleddyn joined the Tigers in 1969.
He played in the club’s first John Player Cup Final, against Gloucester in 1978, and also represented Midland Counties (East) against New Zealand on his home ground at Welford Road in 1973.
After 9 years at the club and 42 tries, he joined BBC Radio Leicester in 1987.
Such sad news. A wonderful man. Deepest sympathies to his family, friends and all at @LeicesterTigers
— Martin Bayfield (@MartinBayfield) April 28, 2021
Club chairman Peter Tom said: “Bleddyn was such a lovely man, one of the nicest you could ever wish to meet, and he was part of this club for such a long time.
“After arriving at the club totally unannounced as a young man, he established himself at fly-half and barely missed a game for the next nine years.
"Then, of course, that wonderful Welsh voice became a central part of matchdays as a radio commentator.
“Bleddyn had a huge number of friends within the game, which speaks volumes for his character, and everyone at the club is deeply saddened to hear of his passing.
"On behalf of players, staff and supporters, I send the Tigers’ very deepest condolences and best wishes to his family and friends.”