Private letters revealing opera star Maria Callas' desire for revenge after she was jilted by billionaire Aristotle Onassis have sold at auction in Rome.
The letters fetched more than £4,000 at a Christie's auction on Wednesday, selling to a mystery bidder.
Eleven lots of the opera singer's letters and photographs sold for £13,000, much more than was expected before the sale.
Days after Onassis wed the widow of assassinated US President John F Kennedy in October 1969, Callas wrote: "It's cruel, it isn't true - both should pay and both will pay, you'll see."
Callas died alone, depressed and unfulfilled, in Paris in September 1977. She was 53.
Onassis, who had once given her a $1m diamond ring, died in March 1975.
Written as her nine-year affair with Onassis was collapsing, Callas' letters also touched on the disillusion she felt and her battle to lose weight.
