British jazz legend Sir John Dankworth died from age-related illness at the King Edward VII Hospital here on Saturday. He was 82. Sir John, a saxophonist and prolific composer, worked with world famous jazz exponents Duke Ellington, Nat King Cole and Ella Fitzgerald to name a few, over a career spanning more than half a century. His death was announced by his jazz singer wife, Dame Cleo Laine, during a star-studded concert marking the 40th anniversary …