Alida Valli (31 May 1921 – 22 April 2006), sometimes simply credited as Valli, stage name of Alida Maria von Altenburger baroness von Markenstein und Frauenberg of the Holy Roman Germanic Empire, was an Italian actress who appeared in more than 100 films, including Mario Soldati's Piccolo mondo antico, Alfred Hitchcock's The Paradine Case, Carol Reed's The Third Man, Michelangelo Antonioni's Il Grido, Luchino Visconti's Senso, Bernardo Bertolucci's 1900 and Dario Argento's Suspiria.