House of Normandy

The House of Normandy designates the noble family which originates from the Duchy of Normandy and whose members were counts of Rouen, dukes of Normandy, as well as kings of England following the Norman conquest of England. It lasted until the House of Plantagenet came to power in 1154. The house emerged from the union between the Viking Rollo (first ruler of Normandy) and Poppa of Bayeux, a West Frankish noblewoman. William the Conqueror and his heirs down through 1135 were members of this dynasty.

House of Normandy
Arms of the duchy of Normandy[nb 1]
Country	France, England
Founded	911
Founder	Rollo
Final ruler	Henry I of England
Titles	Count of Rouen Duke of Normandy King of England Count of Flanders
Estate(s)	Normandy, England, Flanders
Dissolution	1167 (1167)
Deposition	1135
Cadet branches	Illegitimate lines: House of Devereux, Viscounts Hereford House of FitzRobert, Earls of Gloucester House of Dunstanville, Earls of Cornwall
The House of Normandy became extinct before the age of heraldry.

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

The Norman counts of Rouen were:

• Rollo, 911–927
• William Longsword, 927–942

The Norman dukes of Normandy were:

• Richard I, 942–996
• Richard II, 996–1027
• Richard III, 1026–1027
• Robert I, 1027–1035
• William, 1035–1066 (became King of England as William the Conqueror)

The Norman monarchs of England and Normandy were:

• William the Conqueror, 1066–1087
• William II, 1087–1100 (not Duke of Normandy)
• Robert II, 1087–1106 (not King of England)
• Henry I, 1100–1135; 1106–1135
• William Adelin, 1120 (not King of England)
• Matilda, 1135–1153[1]
• Stephen (non-agnatic; a member of the House of Blois), 1135–1154

Norman Count of Flanders:

• William Clito (r. 1127–1128), son of Robert Curthose, great-grandson of Baldwin V, designated by Louis VI of France