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The 1679 Affair of the Poisons

The 1679 Affair of the Poisons

@HistoryBaddie_99 · June 16, 2026

Louis XIV’s court had major main character energy, but the 1679 Affair of the Poisons was the messiest tea in history. It wasn't just petty drama; it was a massive crime ring where aristocrats bought "inheritance powder" from sketchy fortune-tellers to poison their way to the top.

These "witches" provided toxic cocktails for wives wanting to be widows and mistresses looking to eliminate the competition. They turned social climbing into a literal survival game.

The scandal got so unhinged it eventually implicated the King’s own lead mistress, forcing him to hush the investigation before the entire palace ended up in a dungeon.

Wait, how did the King's favorite girl even get caught up in this?

Madame de Montespan was the ultimate "it girl," but she was terrified of being "canceled" by a younger replacement. When Louis XIV started eyeing new mistresses, she didn't just post a cryptic story; she went full dark mode to keep her spot.

She allegedly hit up La Voisin, the head "witch," for love potions and participated in some truly cursed rituals. It wasn't just about killing rivals; it was about using "supernatural" hacks to keep the King obsessed with her.

When the police found her name in the witch's client book, Louis XIV panicked. He couldn't have the mother of his children linked to satanic rituals, so he burned the evidence to protect his brand.

But what actually happened during those rituals to make them so cursed?

Imagine the ultimate cursed image thread, but in real life. These weren't just incense and vibes; we’re talking about the Black Mass, a twisted, horror-movie parody of a church service.

Madame de Montespan allegedly lay naked on an altar while La Voisin performed rituals over her. The ingredients were nightmare fuel—think dried blood and rumors of sacrificed infants to give the love potions extra spice.

It was a total dark web rabbit hole. Even for a court used to messiness, this was way too wild for the public to ever see.

If the King burned the evidence, how do we even know this happened?

Louis XIV tried to delete the receipts, but he couldn't scrub the 17th-century 'cloud.' The police chief, Gabriel de la Reynie, was a total hoarder of intel and kept secret copies of the most scandalous testimonies.

Even though the King burned the official court files to protect his brand, La Reynie’s personal notes survived. They were the ultimate 'deleted scenes' that didn't resurface until centuries later.

It turns out, even the Sun King couldn't stop a dedicated investigator from keeping the receipts when the tea was this scorching.

If the King said 'delete,' why did La Reynie keep the receipts anyway?

La Reynie wasn't just a random cop; he was the OG police chief of Paris and a total perfectionist. To him, the law was the ultimate vibe, and he couldn't stand the idea of a massive case file being incomplete just because the King was having a mid-life crisis.

He knew that once the Sun King’s reign ended, history would need the real tea. He wasn't just being petty; he was protecting his own legacy as the man who actually solved the biggest scandal in French history.

He basically created a 17th-century burner account by hiding the notes in his personal archives. It was a high-stakes flex of 'I know where the bodies are buried,' ensuring the truth survived long after the palace tried to gaslight everyone.

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