 Ernő Gereben

Ernő Gereben (18 June 1907 – 16 May 1988) was a Hungarian–Swiss chess master whose half-century career extended from the mid-1920s to the late 1970s.Born in Sopron, a Hungarian town at the Austrian border, Ernő Gereben used, until 1935, the German-language form of his name, Ernest (or Ernst) Grünfeld.