The Mary Lafarge Affair: How the ‘King of Poisons’ Lost its Crown episode artwork

EPISODE · Mar 19, 2025 · 17 MIN

The Mary Lafarge Affair: How the ‘King of Poisons’ Lost its Crown

from Toxic History!

Arsenic, known since antiquity as the ‘king of poisons’, gained infamy among nobility and the bourgeoisie as a public menace. Synonymous with crimes of ‘fashion’, arsenic poisoning was the silent killer and a nearly untraceable means of murder. It wasn’t until early 19th century France that the poudre de succession met its match, ushering in a revolution in forensic toxicology with the ‘chief terror of poisoners’.

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The Mary Lafarge Affair: How the ‘King of Poisons’ Lost its Crown

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Arsenic, known since antiquity as the ‘king of poisons’, gained infamy among nobility and the bourgeoisie as a public menace. Synonymous with crimes of ‘fashion’, arsenic poisoning was the silent killer and a nearly untraceable means of murder. It...

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