Salomon Zwart was several times Dutch National Champion fencing between 1883-1894.
Jane Fresco-Cohen (his granddaughter):
"I still remember him well he was a sportsman till the day the Nazis brought him to Bergen Belsen at the age of 83, I have never seen him sick or even hear him sneeze...
at the age of 80, he showed us how to use ice skates... he was also champion in bowling... "
Source: Salomon Zwart