Italian title: La Terza madre, The Third Mother) is a 2007 Italian/American supernatural horror film written and directed by Dario Argento. The film stars Asia Argento, Daria Nicolodi, Moran Atias, Udo Kier, and Coralina Cataldi-Tassoni. Written by Argento, Jace Anderson, Walter Fasano, Adam Gierasch, and Simona Simonetti, the film is the concluding installment of Argento's supernatural horror trilogy The Three Mothers, which began with Suspiria in 1977. The film depicts the confrontation with the final "Mother", the witch known as Mater Lachrymarum.
The film has also been billed in English speaking media as Mater Lachrymarum, The Third Mother (English translation of the film's original Italian title), and Mother of Tears: The Third Mother.