Jacqueline Kennedy Onassis was the 35th First Lady of the United States as the wife of President John F. Kennedy. She grew up wealthy in New York and was well-educated. She married JFK in 1953 and they had four children together. As First Lady from 1961-1963, she was young, beautiful, and stylish, throwing great parties at the White House. In 1963, JFK was assassinated in Dallas, leaving Jackie a widow at age 34. She later married Greek shipping magnate Aristotle Onassis in 1968 but the marriage was unhappy. Jackie Kennedy Onassis died of cancer in 1994.