Mark Horton discovers how William the Conqueror taught the English how to construct castles and why William looked to Normandy for the Tower of London's stone.
Discover 11,128,835 listings and 278,060 playable programmes from the BBC
Mark Horton discovers how William the Conqueror taught the English how to construct castles and why William looked to Normandy for the Tower of London's stone.
BBC Two is a lively channel of depth and substance, carrying a range of knowledge-building programming complemented by great drama, comedy and arts.
