For 10 points, name this northern French region, where, nine hundred years after the birth of William the Conqueror, Allied forces would storm a beach on D-Day.
A book chronicling the "Deeds" of "Dukes" from this region was written by William of Jumièges. Feudalism was introduced to this region during the reign of its ruler Richard the Fearless. Charles the Simple granted this region as a namesake duchy to the Viking (*) Rollo. One man born in this region ordered a census that was recorded in the Domesday Book, and that man would sail a fleet from this region in 1066 to invade England before winning the Battle of Hastings. For 10 points, name this northern French region, where, nine hundred years after the birth of William the Conqueror, Allied forces would storm a beach on D-Day.
A book chronicling the "Deeds" of "Dukes" from this region was written by William of Jumièges.
Normandy (accept word forms, like Norman)