|Madame X (Absinthe) (1929) [Jacqueline Floriot]: Dies of unspecified natural causes (presumably a heart attack on top of general ill health), collapsing in the courtroom after talking to her son (Raymond Hackett), who remains unaware that she was his mother.
The Right to Love (1930) [Naomi Kellogg/Brook Evans]: Playing a dual role as mother and daughter, the mother "Naomi" dies (off-screen) of unspecified natural causes. (The daughter "Brook" survives the movie.)
Frisco Jenny (1932) [Frisco Jenny Sandoval]: Executed (presumably off-screen) by hanging.
Hallmark Hall of Fame: Hamlet (1953) [Gertrude]: Poisoned when she drinks from a cup that Joseph Schildkraut had intended for Maurice Evans.