Aristotle Onassis and his yacht "Christina O". Onassis died at age 69 on 15 March 1975 at the American Hospital of Paris in Neuilly-sur-Seine, France, of respiratory failure, a complication of the myasthenia gravis from which he had been suffering during the last years of his life. Onassis was buried on his island of Skorpios in Greece, alongside his son, Alexander. Onassis' will established a charitable foundation in memory of his son, named the Alexander S. Onassis Public Benefit Foundation, based in the tax haven of Vaduz in Liechtenstein, and headquartered in Athens. The foundation received 45% of Onassis' estate, which would
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