Duke Normandy

Around 930 William "Longsword" Normandy I Duke Normandy succeeded I Duke Normandy

On 17 Dec 942 Richard "Fearless" Normandy I Duke Normandy succeeded I Duke Normandy

On 20 Nov 996 Richard "Good" Normandy II Duke Normandy succeeded II Duke Normandy

On 28 Aug 1026 Richard Normandy III Duke Normandy succeeded III Duke Normandy

On 06 Aug 1027 Robert "Magnificent" Normandy I Duke Normandy succeeded I Duke Normandy

In 1035 William "Conqueror" I King England succeeded II Duke Normandy

After 09 Sep 1087 Robert Curthose Normandy III Duke Normandy succeeded III Duke Normandy

Around Aug 1120 William Adelin Normandy Duke Normandy was appointed as Duke Normandy

In 1144 Geoffrey Plantagenet Duke Normandy was appointed as Duke Normandy

Henry "Curtmantle" II King England was created as Duke Normandy

Rollo Normandy Duke Normandy was created as Duke Normandy

Count Avranches

Álvaro Vaz Almada was created 1st Count Avranches

Count Beaumont-sur-l'Oise

Ivo Beaumont-Oise was appointed as Count Beaumont-sur-l'Oise