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
Alexander Onassis relationship with Fiona Thyssen, former wife of Hans Heinrich Thyssen-Bornemisza. He was later appointed the head of Olympic Aviation, a Greek regional airline owned by his father. Onassis died in hospital as a result of injuries sustained in an air crash at Hellinikon International Airport at the age of 24. The Alexander S. Onassis Foundation was established in his memory. Alexander Socrates Onassis was born at the Harkness Pavilion, a private clinic in New York City's NewYork–Presbyterian Hospital. He was the elder child of the Greek shipping magnate Aristotle Onassis (1906 –1975) and his first wife, Athina Livanos (1929 –1974),