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
Alexander Onassis States. Onassis and his sister Christina were greatly upset by the union. They had hoped that he might remarry their mother, which had seemed possible towards the end of their father's relationship with the Greek opera singer Maria Callas. Onassis said: "My father loved names and Jackie loved money." Despite never liking their stepmother, Onassis and his sister were friendly with her children, Caroline Kennedy and John, and Onassis would occasionally let his stepbrother ride at the controls of his plane. Aristotle Onassis's friend, John W. Meyer, credited Alexander with persuading his father to stop publicly accusing his business rival