Complex sentence: Denys Gravenor Rhodes (9 July 1919--30 October 1981) was an English writer who is most famous for his novel "The Syndicate" which was adapted into a 1968 film.
Split into simpler sentences: Denys Gravenor Rhodes (9 July 1919--30 October 1981) was an English writer. He is most famous for his novel "The Syndicate" which was adapted into a 1968 film.