Aristotle Onassis and Maria Callas 'couldn't live without the other one,' his longtime personal secretary Kiki Feroudi ...

Aristotle Onassis' longtime personal secretary Kiki Feroudi Moutsatsos tells PEOPLE about his affair with Maria Callas ...

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 ...

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 ...

There weren’t many people closer to Aristotle Onassis than Kiki Feroudi Moutsatsos, his personal secretary and loyal gatekeeper. It was Moutsatsos who arranged for many of the secret ...

New details the most mysterious love triangles of the 20th century, that of Aristotle Onassis Maria Callas and Jackie Kennedy ...

According to his longtime secretary, confidant, and friend, Kiki Feroudi Moutsatsos, Onassis had a decade-plus-long affair with famous opera singer Maria Callas. The performer and businessman were so ...

Tessa Petak is a Brooklyn-based writer who helps to cultivate InStyle's illustrious news coverage across a wide range of topics including celebrity, fashion, and entertainment. She also produces ...