He participated in 29 Formula One World Championship Grands Prix , debuting on 21 May 1950 .
Robert Manzon ( 12 April 1917 -- 19 January 2015 ) was a French racing driver .
Robert Manzon participated in 29 Formula One World Championship Grands Prix , debuting on 21 May 1950 .
Robert Manzon ( 12 April 1917 -- 19 January 2015 ) was a French racing driver .