` Aristotle Onassis saw Christina O as a powerful symbol of his growing business empire , '' said Nicholas Edmiston , chairman of the yacht company Edmiston , which plans to sell the vessel mid-August . Christina O , former superyacht of Aristotle Onassis , up for sale . Onassis we d former US first lady Jackie Kennedy on board the vessel . Said to cost more than $ 32 million when goes on sale in mid - August . Backdrop to lavish 1950s parties , attended by Marilyn Monroe , Frank Sinatra .
Christina O , former superyacht of Aristotle Onassis , up for sale . Onassis we d former US first lady Jackie Kennedy on board the vessel . Said to cost more than $ 32 million when goes on sale in mid - August . Backdrop to lavish 1950s parties , attended by Marilyn Monroe , Frank Sinatra .