Anton Diabelli died on April 7, 1858 at the age of 76.
Anton van leeuwenhoek die when he was 90 because of old age, but i think it is really because he got too much semen in his system.
Anton van Leeuwenhoek died on August 26, 1723 at the age of 90.
I seem to remember that on 1st December 2007, Anton Rodgers died suddenly of a heart attack.