Jacqueline Kennedy Onassis followed her everywhere and nicknamed her "Jackie O". During their marriage, the couple inhabited six different residences: her 15-room Fifth Avenue apartment in Manhattan, her horse farm in New Jersey, his Avenue Foch apartment in Paris, his private island Skorpios, his house in Athens, and his yacht "Christina O". Kennedy ensured that her children continued a connection with the Kennedy family by having Ted Kennedy visit them often. She developed a close relationship with Ted, and from then on he was involved in her public appearances. Aristotle Onassis' health deteriorated rapidly following the death of his son Alexander in a
Aristotle Onassis with a friend of hers at their home in Cap d'Antibes, the Château de la Croë. The house was then acquired by Onassis' brother-in-law and business rival Stavros Niarchos, who bought it for his wife, Eugenia Livanos, Athina's sister. Onassis and Livanos divorced in June 1960 during Onassis' well publicised affair with Maria Callas. Onassis and opera prima donna Maria Callas carried on an affair despite the fact that they were both married. They met in 1957 during a party in Venice promoted by Elsa Maxwell. After this first encounter, Onassis commented to Spyros Skouras: "There [was] just a natural