Also on these boards
Barclay Towie Castle - not sure if this is what the original castle looked like, but it did come up in a search.
William the Conqueror. England's Hitler. He kept himself on the throne by using the art of terror. When some northerners rose up against him he caused citizens to be slaughtered and the lands to be destroyed, reducing the population of the north of England by 50 per cent. I have not heard of such atrocities by any other English ruler against the citizens of England itself.