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
Aristotle Onassis was 17 at the time of their marriage; Onassis was 40. Onassis and Livanos had two children, both born in New York City: a son, Alexander (1948–1973), and a daughter Christina (1950–1988). Onassis named his legendary super-yacht after his daughter. To Onassis his marriage to Athina was more than the fulfillment of his ambitions. He also felt that the marriage dealt a blow to his father-in-law and the old-money Greek traditionalists who held Onassis in very low esteem. The couple had become largely separated by the mid-1950s, with the end of the marriage coming after Livanos found Onassis in bed