After 911, the Viking Rollo was the first Norman count of Rouen. His successors were called Dukes of Normandy. These dukes increased the strength of Normandy, although they had to observe the superiority of the king of France. They held on to some territory in Scandinavia and the right to enter those lands by sea. The aristocracy was composed of a small group of Scandinavian men, while the majority of the Norman political leaders were of Frankish descent.
The fiefdom of Normandy was created in 911 for the Viking leader Rollo (also known as Rolf). After participating in many Viking incursions along the Seine, culminating in the siege of Paris in 886, Rollo was finally defeated by King Charles the Simple. Rollo swore fealty to the French King, converted to Christianity and was baptized with the name Robert. Charles then granted Rollo territories around Rouen, which came to be called Normandy after the Northmen (Latinised Normanni).
King Rollo the Danish Viking grandfather of William the Conquerer who invaded and seized the crown of England in 1066. William claimed that he had been promised the English thrown on the death of it's then ruler William's cousin Edward the Confessor, his invasion was claimed to be aimed at claiming what was rightfully his...
Robert the Magnificent (1000 – 1035) was the Duke of Normandy from 1027 until his death. He was the father of William the Conqueror who became in King of England in 1066 and was the great, great grandson of the famous Viking leader and first Duke of Normandy Rollo. My 26th, 27th, 28th (x2) 29th, 30th, 31st & 32nd GGF.