Complex sentence: Jayne Seymour Fonda was born in New York City, on December 21,1937 to Canadian-born socialite Frances Ford Brokaw (née Seymour) and actor Henry Fonda.
Split into simpler sentences: Jayne Seymour Fonda was born in New York City on December 21,1937. Her parents were Canadian-born socialite Frances Ford Brokaw (née Seymour), and actor Henry Fonda.