Aristotle Onassis curiosity; after all, we were the most famous Greeks alive in the world." Callas and Onassis both divorced their spouses but did not marry each other although their relationship continued for many years. Onassis ended his relationship with Callas to marry Jacqueline Kennedy, widow of U.S. President John F. Kennedy. They married on 20 October 1968 on Onassis' privately owned Greek island, Skorpios. According to biographer Peter Evans, Onassis offered Mrs. Kennedy US$3 million to replace her Kennedy trust fund, which she would lose because she was remarrying. After Onassis' death, she would receive a settlement of US$26 million; US$150,000
Tina Onassis Niarchos Lausanne, Switzerland. Her daughter, Christina Onassis, sued Stavros Niarchos, her mother's widower, for her mother's estimated US$250 million (in 1974 dollars) estate claiming the marriage should be annulled under Greek law. Christina later dropped the lawsuit and Niarchos returned all of his wife's money as well as her jewelry, artwork and other personal effects to Christina. Her only living descendant is her namesake granddaughter, Athina Onassis, Christina's daughter. Tina Onassis Niarchos Athina Mary "Tina" Niarchos (, , née Livanos; 19 March 1929 – 10 October 1974) was the second daughter of the Greek shipping magnate Stavros Livanos and Arietta Zafiraki.