M'Naghten Rules Case
Poets involved
What happened
In London, Daniel M'Naghten was acquitted of murder by reason of insanity after shooting and killing Edward Drummond, whom he mistook for Prime Minister Robert Peel, in a delusional belief that he was being persecuted by the Tories and the Pope. The public outrage at the acquittal led the House of Lords to establish the M'Naghten Rules, a strict legal test for insanity requiring the defendant to be unable to understand the nature of their act or to know it was wrong.
Literary impact
The M'Naghten case and its rules became a recurring reference in Victorian poetry and fiction exploring madness, responsibility, and the limits of rationality. The case influenced Robert Browning's dramatic monologues, particularly "Madhouse Cells," and poets from Emily Dickinson to Wilfred Owen engaged with the legal definitions of sanity that the M'Naghten Rules imposed, using the gap between legal and psychological understanding of the mind as a source of poetic tension.
Source: Wikipedia