obert (I) the Devil Duke of Normandy from
1027. Also known as the Magnificent, he was the father of William
the Conqueror, and was legendary for his cruelty. He became duke
after the death of his brother Richard III, in which he may have
been implicated. The "Robert the Devil" who is the hero
of three Old French romances is a mythical figure, the product of
an unholy copulation between a demon and the duchess of Normandy
who, after a life of terrible brutality, became a famously holy
hermit. © Copyright Helicon Publishing Ltd 1996. [The Hutchinson
Encyclopedia]
Robert I, surnamed le Diable (d. 1035), Duke of Normandy. In 1035 he made a pilgrimage to the Holy Land, on the way home from which he died at Nicæa. His son was William the Conqueror of England. [The Home University Encyclopedia, 1946]