Lady Macbeth is a fictional character in Shakespeare's Macbeth

Macbeth

The Tragedy of Macbeth is a play by William Shakespeare about a regicide and its aftermath. It is Shakespeare's shortest tragedy and is believed to have been written sometime between 1603 and 1607...

(c.1603–1607). She is the wife to the play's protagonist, Macbeth

Macbeth (character)

Macbeth is the title character in William Shakespeare's Macbeth . The character is based on the historical king Macbeth of Scotland, and is derived largely from the account in Holinshed's Chronicles , a history of Britain. Macbeth is a Scottish noble and a valiant military man. He is portrayed...

, a Scottish

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

 nobleman. After goading him into committing regicide

Regicide

The broad definition of regicide is the deliberate killing of a monarch, or the person responsible for the killing of a monarch. In a narrower sense, in the British tradition, it refers to the judicial execution of a king after a trial...

, she becomes Queen of Scotland, but later suffers pangs of guilt for her part in the crime. She dies off-stage in the last act, an apparent suicide

Suicide

Suicide is the act of intentionally causing one's own death. Suicide is often committed out of despair or attributed to some underlying mental disorder, such as depression, bipolar disorder, schizophrenia, alcoholism, or drug abuse...

.

The character's origins lie in the accounts of Kings Duff and Duncan in Holinshed's Chronicles

Holinshed's Chronicles

Holinshed's Chronicles, also known as Holinsheds Chronicles of England, Scotland, and Ireland, is a collaborative work published in several volumes and two editions, the first in 1577, and the second in 1587....

(1587), a history of Britain familiar to Shakespeare.