[2] Following an audition for the role of Eva in John Huston's The Bible: In the Beginning..., she was noted by the producer Dino De Laurentiis who put her under contract for seven years, a contract she eventually broke after three years.

[3] Her first role was Ugo Tognazzi's wife in A Question of Honour, and following a few comedies, her early career was characterized by genre films, mainly spaghetti Western, notably Sergio Corbucci's Navajo Joe.

[3] Starting from the late 1960s Machiavelli started appearing in more ambitious art films, working with Hans-Jürgen Syberberg, Pietro Germi, Dino Risi, Sergio Citti, Andrzej Żuławski, and Liliana Cavani, among others.

[3] In 1984, Machiavelli became a disciple of Osho and retired from show business.

[2] She died of an undisclosed illness on 15 November 2015, aged 71.