Question: Who was married to the woman known as Jackie O until his assassination in 1963?
Sentence (from "Jacqueline Kennedy Onassis"): Jacqueline Lee "Jackie" Kennedy Onassis (née Bouvier; ; July 28, 1929 – May 19, 1994) was the wife of the 35th President of the United States, John F. Kennedy, and First Lady of the United States from 1961 until his assassination in 1963.
Relevant evidence: Yes