Question: Which character in William Shakespeare's "Macbeth" is Lady Macduff  the wife of 

Context paragraphs:
Lady Macduff: Lady Macduff is a character in William Shakespeare's "Macbeth".  She is the wife of Lord Macduff, the Thane of Fife, and the mother of an unnamed son and other children.  Her appearance in the play is brief: she and her son are introduced in Act IV Scene II, a climactic scene that ends with her and her son being murdered on Macbeth's orders.  Though Lady Macduff's appearance is limited to this scene, her role in the play is quite significant.  Later playwrights, Sir William Davenant especially, expanded her role in adaptation and in performance.

Macbeth (1979 film): Macbeth is a 1979 videotaped version of Trevor Nunn's Royal Shakespeare Company production of the play by William Shakespeare.  Produced by Thames Television, it features Ian McKellen as Macbeth and Judi Dench as Lady Macbeth.  The TV version was directed by Philip Casson.

Macduff (Macbeth): Lord Macduff, the Thane of Fife, is a character in William Shakespeare's "Macbeth" (c.1603–1607).  Macduff plays a pivotal role in the play: he suspects Macbeth of regicide and eventually kills Macbeth in the final act.  He can be seen as the avenging hero who helps save Scotland from Macbeth's tyranny in the play.

Macbeth (1971 film): Macbeth (or The Tragedy of Macbeth) is a 1971 British-American historical drama film directed by Roman Polanski and co-written by Polanski and Kenneth Tynan.  A film adaptation of William Shakespeare's tragedy of the same name, it retells the story of the Highland lord who becomes King of Scotland through treachery and murder.  The film stars Jon Finch as the title character and Francesca Annis as Lady Macbeth, noted for their relative youth as actors.  Themes of historic recurrence, greater pessimism and internal ugliness in physically beautiful characters are added to Shakespeare's story of moral decline, which is presented in a more realistic style.

Tomorrow and tomorrow and tomorrow: Tomorrow and tomorrow and tomorrow is the beginning of the second sentence of one of the more famous soliloquies in Shakespeare's tragedy "Macbeth".  It takes place in the beginning of the 5th scene of Act 5, during the time when the English troops, led by Malcolm and Macduff, are approaching Macbeth's castle to besiege it.  Macbeth, the play's protagonist, is confident that he can withstand any siege from Malcolm's forces.  He hears the cry of a woman and reflects that there was a time when his hair would have stood on end if he had heard such a cry, but he is now so full of horrors and slaughterous thoughts that it can no longer startle him.

Banquo: Lord Banquo , the Thane of Lochaber, is a character in William Shakespeare's 1606 play "Macbeth".  In the play, he is at first an ally to Macbeth (both are generals in the King's army) and they are together when they meet the Three Witches.  After prophesying that Macbeth will become king, the witches tell Banquo that he will not be king himself, but that his descendants will be.  Later, Macbeth in his lust for power sees Banquo as a threat and has him murdered; Banquo's son, Fleance, escapes.  Banquo's ghost returns in a later scene, causing Macbeth to react with alarm during a public feast.

Macduff's son: Macduff's son is a character in William Shakespeare's tragedy "Macbeth" (1606).  His name and age are not established in the text, however he is estimated to be 7–10 years of age, and is often named as Andrew, for ease.  He follows Shakespeare's typical child character; cute and clever.  While Lady Macduff and her children are mentioned in "Holinshed's Chronicle" as the innocent victims of Macbeth's cruelty, Shakespeare is completely responsible for developing Macduff's son as a character.

Young Siward: Young Siward is a character in William Shakespeare’s play "Macbeth" (1606).  He is the son of Siward, general of the English forces in the battle against Macbeth.  Macbeth kills him in the final battle, shortly before his swordfight with Lord Macduff.

Lady Macbeth: Lady Macbeth is a leading character in William Shakespeare's tragedy "Macbeth" (c.1603–1607).  The wife of the play's tragic hero, Macbeth (a Scottish nobleman), Lady Macbeth goads her husband into committing regicide, after which she becomes queen of Scotland.  Later, however, she suffers pangs of guilt for her part in the crime, which drives her to sleepwalk.  She dies off-stage in the last act, an apparent suicide.

Macbeth (1913 film): Macbeth is a German 1913 silent film version of the William Shakespeare play "Macbeth", and the fifth film adaptation of that work.  Arthur Bourchier plays Macbeth, and Violet Vanbrugh Lady Macbeth.  It was released on 17 November 1913 in the UK.  It is 47 minutes long.

Supporting paragraphs: Lady Macduff Macduff (Macbeth)
Answer: Lord Macduff