Simon, 74, claimed the notoriously private Onassis confided in her about the Greek shipping magnate. According to Simon, Jackie said Aristotle flaunted his affair with opera singer Maria Callas by ...

Aristotle Onassis and Maria Callas 'couldn't live without the other one,' his longtime personal secretary Kiki Feroudi Moutsatsos tells PEOPLE. And Onassis' wife, Jackie Kennedy, knew about the ...

Aristotle Onassis had a longtime affair with opera singer Maria Callas that lasted until his death in 1975 at age 69. Callas is the subject of a biopic starring Angelina Jolie.

Aristotle Onassis and Maria Callas 'never stopped seeing each other,' even after his marriage to Jacqueline Kennedy, his longtime personal secretary Kiki Feroudi Moutsatsos tells PEOPLE.

When Aristotle Onassis, the Greek shipping magnate, met Maria Callas, the great opera diva, in 1957 they were both married to others. But that didn’t stop them from falling in love and having an ...

The real Maria Callas met Aristotle Onassis during her marriage to Giovanni Battista Meneghini. Callas and Meneghini were married from 1949 to 1959. They met in Italy in 1947, ...

Maria Callas visited her longtime lover Aristotle Onassis on his deathbed in a secret meeting arranged so that his wife Jacqueline Kennedy Onassis wouldn't find out. The moment is dramatized in ...

A new memoir offers an inside look at Jacqueline Kennedys second marriage, to Greek-shipping tycoon Aristotle Onassis. “It was hard to tell by Madam’s business-like demeanor whether she was ...

Years before Aristotle Onassis married Jacqueline Kennedy on October 20, 1968, he was involved with her younger sister, Lee Radziwill. Radziwill, a former public relations executive, became close ...

Once home to the late Greek shipping billionaire Aristotle Onassis, it’s where he and Jacqueline Kennedy Onassis married in 1968—and later, where an Italian paparazzo took photographs of ...

When rumours emerged that Aristotle Onassis was romantically involved with Jackie Kennedy, a young Greek journalist sneaked on to the shipping magnate's yacht to see if it was true. Forty years ...

Aristotle Onassis and Maria Callas Even after Onassis married Jackie on Oct. 20, 1969. “He was proud of that,” recalls Moutsatsos, who attended the wedding on his private island of Skorpios.