Complex sentence: Conrad Nicholson Hilton (December 25,1887--January 3,1979) was an American hotelier and founder of the Hilton Hotels chain, and great-grandfather of celebutantes Paris and Nicky Hilton.
Split into simpler sentences: Conrad Nicholson Hilton (December 25,1887--January 3,1979) was an American hotelier and founder of the Hilton Hotels chain. He was the great-grandfather of celebutantes Paris and Nicky Hilton.