Semblat was leading French jockey for more than twenty years before his riding career was ended by injury .
Charles Henri Semblat , ( 1897 -- 1972 ) was a French jockey and racehorse trainer .
jockey was leading French jockey for more than twenty years before Charles Henri Semblat 's riding career was ended by injury .
Charles Henri Semblat , ( 1897 -- 1972 ) was a French jockey and racehorse trainer .