"Although
it is the reputed scene of the murder of Duncan by
Macbeth, Cawdor Castle did not come into existence until
1454, when the square keep, defended by moat and
drawbridge and the rocky bank of the Calder Burn, was
built by William, Thane of Cawdor. Later additions were
made in the 17th century."
Extract from "The royal palaces, historic castles and stately homes of Great Britain" (Open Library)
