[1] The House of Normandy includes members who were dukes of Normandy, counts of Rouen, as well as kings of England following the Norman conquest of England.

It lasted until Stephen of the French House of Blois seized the Duchy of Normandy in 1135.

The house emerged from the union between the Viking Rollo[2] (first ruler of Normandy) and Poppa of Bayeux,[3] a West Frankish noblewoman.

After that it was disputed between William's grandchildren, Matilda, whose husband Geoffrey[5] was the founder of the House of Plantagenet, and Stephen of the House of Blois (or Blesevin dynasty).

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