Final answer:
In Mary Shelley's 'Frankenstein', Victor Frankenstein makes a fervent but unsuccessful speech in defense of Justine Moritz, who is falsely accused of murder.
Step-by-step explanation:
In Mary Shelley's novel Frankenstein, it is Victor Frankenstein who delivers a passionate speech in defense of Justine Moritz. Justine has been falsely accused of murdering William, Victor's younger brother. Despite Victor's knowledge of the true murderer, his creation, he can neither reveal the creature's existence nor prevent Justine’s conviction. Victor’s defense of Justine is ultimately ineffectual due to the overwhelming evidence against her and the public's fear and misunderstanding, leading to tragic consequences.