The Antea hospital said she died Friday. The LaPresse news agency said she was suffering from pancreatic cancer.
The blond actress had most success in a series of films in the 1970s directed by the Italian Lina Wertmuller, including "The Seduction of Mimi" and "Love and Anarchy."
One of the most acclaimed was the role of a socialite who finds herself stranded with Giancarlo Giannini. Her role was played by Madonna in a 2002 remake.
Melato had less success in Hollywood roles, which included a supporting part in "Flash Gordon" in 1980.
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