Late this night* in 1628 was the fictional execution of The Three Musketeers antagonist Milady de Winter.
This conniving minx bears the fleur-de-lis brand of a teenage crime upon her shoulder — a very naughty beauty-mark indeed — but becomes a secret agent of Cardinal Richelieu. (Richelieu is a point of friction for the Musketeers right from the start.)
This novel — which has long been in the public domain (Text at Gutenberg.org or ClassicReader.com | Free audio book at Librivox.org) — features Milady continually bedeviling the protagonist d’Artagnan. He loves her; she keeps trying to kill him. Pretty typical for these grim annals. (She also used to be Athos’s wife, years ago, until he tried to murder her. Long story.)
To skip to the end of things, Milady is portrayed as having orchestrated at Richelieu’s behest the (actual, historical) assassination of the Musketeers’ buddy the (actual, historical) Duke of Buckingham, which Milady accomplishes by seducing and manipulating his (actual, historical) assassin, John Felton. In reality, Felton was motivated by the stirring Republican sentiment that would soon generate a revolution; in Dumas, he’s a horny dupe who beholds his seductress escaping by sea even as he’s placed under arrest.
Buckingham was (actually, historically) murdered on August 23.
The fictional narrative picks up on August 25, when the escaped Milady writes to Cardinal Richelieu from the safety of Boulogne. Unbeknownst to her, her hours are numbered.
Milady proceeds the next morning to a convent in Bethune where she chances to encounter the mistress of her old foe d’Artagnan … and, by that night, to slay said mistress with poison just ahead of the arrival of the Musketeers.** But the Musketeers are able to track the escaping murderess down by the next evening. There, they subject her to a snap “trial”:
“We wish to judge you according to your crime,” said Athos; “you shall be free to defend yourself. Justify yourself if you can. M. d’Artagnan, it is for you to accuse her first.”
“Before God and before men,” said he, “I accuse this woman of having poisoned Constance Bonacieux, who died yesterday evening.”
He turned towards Porthos and Aramis.
“We bear witness to this,” said the two Musketeers, with one voice.
D’Artagnan continued: “Before God and before men, I accuse this woman of having attempted to poison me, in wine which she sent me from Villeroy, with a forged letter, as if that wine came from my friends. God preserved me, but a man named Brisemont died in my place.”
“We bear witness to this,” said Porthos and Aramis, in the same manner as before.
“Before God and before men, I accuse this woman of having urged me to the murder of the Baron de Wardes; but as no one else can attest the truth of this accusation, I attest it myself. I have done.” And d’Artagnan passed to the other side of the room with Porthos and Aramis.
“Your turn, my Lord,” said Athos.
The baron came forward.
“Before God and before men,” said he, “I accuse this woman of having caused the assassination of the Duke of Buckingham.”
“The Duke of Buckingham assassinated!” cried all present, with one voice.
“Yes,” said the baron, “assassinated. On receiving the warning letter you wrote to me, I had this woman arrested, and gave her in charge to a loyal servant. She corrupted this man; she placed the poniard in his hand; she made him kill the duke. And at this moment, perhaps, Felton is paying with his head for the crime of this fury!”
And so forth.
Then these obviously impartial judges judge her guilty, and have the executioner of Lille — whom they have thoughtfully procured in advance — chop off her head and dump her in a river.
“The executioner may kill, without being on that account an assassin,” said the man in the red cloak [i.e., the executioner himself], rapping upon his immense sword. “This is the last judge; that is all. Nachrichter, as say our neighbors, the Germans.”
Extrajudicial is as extrajudicial does. And in this case, Richelieu is just as happy to be rid of his duplicitous agent and, admiring the protagonist’s moxie, commissions d’Artagnan a lieutenant in the Musketeers. D’Artagnan is the fourth of the titular “three Musketeers”, so this denouement means that he’s finally made it … and he should stand by for duty in sequels continuing to mix-and-match Dumas’s fictional characters with actual, historical events.
This date’s captivating femme fatale has appropriately been portrayed by a ravishing host of silver screen sirens including Lana Turner, Mylene Demongeot, Antonella Lualdi, Faye Dunaway, Rebecca de Mornay, Emmanuelle Beart, and (most recently as of this writing), Milla Jovovich.
* August 27-28, right around midnight. Dumas isn’t specific as to pre- or post-midnight.