How does Milady die in the three musketeers?

In "The Three Musketeers," Milady de Winter meets her end through the actions of d'Artagnan and his friends. After being captured and tried for her numerous crimes, including murder and deceit, she is ultimately sentenced to death. D'Artagnan, after confronting her about her past, executes her by beheading her in a secluded location, marking her dramatic downfall from a manipulative antagonist to a powerless victim.