Condolances to his family, still working to the end, he was a radio and jazz legend.
RIP Humph
http://news.bbc.co.uk/1/hi/uk/7367385.stm
Veteran jazz musician and radio host Humphrey Lyttelton has died aged 86.
The chairman of BBC Radio 4's comedy panel show I'm Sorry I Haven't A Clue recently had surgery in an attempt to repair an aortic aneurysm.
The latest series of the quiz programme was cancelled after Lyttelton was admitted to Barnet Hospital in north London on 16 April.
BBC Director General Mark Thompson described "Humph" as "a unique, irreplaceable talent".
'Towering figure'
Lyttelton retired from hosting Radio 2's The Best of Jazz last month after more than 40 years presenting the show.
He hosted I'm Sorry I Haven't a Clue - the self-styled "antidote to panel games" - since 1972, appearing alongside regulars Graeme Garden, Barry Cryer and Tim Brooke-Taylor.
Like his many fans, we owe him an enormous debt of gratitude. Like them, all of us at the BBC feel a tremendous sense of loss
Mark Thompson
BBC Director General
Tributes to 'immense talent'
In 1993, he received a Sony Gold Award for services to broadcasting.
Lyttelton began playing the trumpet in 1936 and was still touring with his band up until his admission to hospital.
Best known for the song Bad Penny Blues, they became the first British jazz act to enter the top 20 in 1956.
He was honoured with a lifetime achievement award at both the Post Office British Jazz Awards in 2000 and at the first BBC Jazz Awards in 2001.