MacBeth's Character Changes

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…Lady Macbeth who helped him through the first murder but in sacrifice to controlling Macbeth and his conscience she lost control of hers and in consequence turned insane and killed herself. Thus in the end it was worthy to call Macbeth and his wife "a dead butcher and his fiend like queen" but it must not be forgotten that at the beginning of the play Macbeth and his wife were ordinary nobles at the time.