Febo Mari: Cenere (1916)

Cenere is a 1916 silent film directed by and starring Febo Mari. It is adapted from the 1904 novel by the Nobel Prize-winning Sardinian writer Grazia Deledda. It is notable as the only film performance by of the Italian theater star Eleonora Duse.
Rosalia Derios is an unmarried woman in a small Sardinian village whose lover abandons her before the birth of their son, whom she names Anania. Realizing that she will not be able to raise the child properly, she gives full custody of Anania to her former lover. However, she entrusts the boy with a sacred amulet before she leaves. Anania grows to adulthood and retains possession of the amulet, but he is haunted by his mother’s absence and tries to locate her. He pushes aside his career prospects and cancels his plans for marriage in order to pursue his search for Rosalia. Anania's search proves successful and he locates his mother but Rosalia cannot take the shock of being reunited with her adult son and kills herself.
https://en.wikipedia.org/wiki/Cenere