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
Jacqueline Kennedy Onassis neck, and was diagnosed with non-Hodgkin lymphoma. She began chemotherapy in January 1994 and publicly announced the diagnosis when she stated that the initial prognosis was good. She continued to work at Doubleday, but by March the cancer had spread to her spinal cord and brain, and by May to her liver. Onassis made her last trip home from New York Hospital–Cornell Medical Center on May 18, 1994. The following night at 10:15 p.m., she died in her sleep at age 64. John F. Kennedy, Jr. announced his mother's death to the press, stating she had been "surrounded by her