Lady Macbeth is a leading character in William Shakespeare's tragedy Macbeth. As the wife of the play's tragic hero, Macbeth, Lady Macbeth goads her husband into committing regicide, after which she becomes queen of Scotland. Some regard her as becoming more powerful than Macbeth when she does this, because she is able to manipulate him into doing what she wants. After Macbeth becomes a murderous tyrant, she is driven to madness by guilt over their crimes and kills herself offstage.

William Shakespeare was an English playwright, poet, and actor. He is widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. He is often called England's national poet and the "Bard of Avon". His extant works, including collaborations, consist of some 39 plays, 154 sonnets, three long narrative poems, and a few other verses, some of uncertain authorship. His plays have been translated into every major living language and are performed more often than those of any other playwright. Shakespeare remains arguably the most influential writer in the English language, and his works continue to be studied and reinterpreted.