Mac Bethad mac Findlaích (Modern Gaelic: MacBheatha mac Fhionnlaigh, anglicised as Macbeth, and nicknamed Rí Deircc, "the Red King"; died 15 August 1057) is King of the Scots (also known as the King of Alba, and earlier as King of Moray and King of Fortriu) from 1040 until his death.
He is best known as the subject of William Shakespeare's tragedy Macbeth and the many works it has inspired, although the play presents a highly inaccurate picture of his reign and personality.
