Complex sentence: Marita Lorenz (born August 18,1939 in Bremen) was a German woman who at the age of 19 in 1959 had an affair with Fidel Castro and in January 1960 was involved in an assassination attempt by CIA on Castro's life.
Split into simpler sentences: Marita Lorenz (born August 18,1939 in Bremen). German, who at the age of 19 in 1959 had an affair with Fidel Castro and in January 1960 was involved in an assassination attempt by CIA on Castro's life.