Aristotle Onassis ... and later married Jacqueline Kennedy in 1968. “Onassis was protecting his affair,” recalls Moutsatsos, 75. “He was protecting Jackie, but Jackie was very smart.

Aristotle Onassis' longtime personal secretary Kiki Feroudi Moutsatsos tells PEOPLE about his relationship with Maria Callas, which began years before he married Jackie Kennedy Liz McNeil is an ...

There weren’t many people closer to Aristotle ... between Onassis, whom she fondly calls “Aristo,” and the opera diva Maria Callas — while he was married to Jacqueline Kennedy Onassis ...

Following the death of President John F. Kennedy, widow Jackie Kennedy remarried Greek businessman Aristotle Onassis in 1968, and while Kennedy stayed with the tycoon until his death in 1975 ...

LONDON - The leading ladies of the late Greek shipping tycoon Aristotle ... Onassis Kennedy on the private yacht, Christina O ...

"Maria" also includes flashbacks of Callas' glory days as a performer and her relationships with her husband and manager Giovanni Battista Meneghini and her lover Aristotle Onassis. Onassis ...

Related: Inside Jackie Kennedy and Maria Callas' Love Triangle with Aristotle Onassis from Someone Who Saw It All (Exclusive) Few were as close to what really happened as Moutsatsos, who began working ...

Aristotle Onassis' longtime personal secretary Kiki Feroudi Moutsatsos tells PEOPLE about his affair with Maria Callas Central Press/Getty; Ron Galella/Ron Galella Collection via Getty; Len ...