House of Châteaudun

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The House of Châteaudun is a medieval lineage that once possessed the Viscounty of Chartres and the County of Perche.

Origin of the House of Châteaudun[edit]

The House of Châteaudun descended from Gauzfred I (or Geoffroy I) whom Count Theobald I, Count of Blois made Viscount of Châteaudun in 956. Recent research makes him a direct-line agnatic descendant of the Frankish family Rorgonides.

Branches of the House of Châteaudun[edit]

The House of Châteaudun split in two distinct branches. Descended from Fulcois du Perche, probably the second son of Gauzfred I, were:

  • The lineage of the Counts of Perche, extinct by 1217, with Thomas du Perche;
  • The line of viscounts of Châteaudun, extinct by 1249, with Geoffrey VI of Châteaudun;
  • The lineage of the counts of Anjou, who acquired the land by the marriage of a grandson of Fulcois, Geoffrey II, Count of Gâtinais with Ermengarde of Anjou, heiress of the House of Ingelger. Their great-grandson in direct agnatic line will be Geoffrey V, Count of Anjou. The Plantagenets and descended from this line.

Genealogy[edit]

Note : The dotted lines represent hypothetical relationships.

Gauzfred I
(† 986)
Viscount of Châteaudun
Hugues I of Châteaudun
(† 1003)
Viscount of Châteaudun
Archbishop of Tours
Fulcois du Perche
Count of Perche (?)
Adalaud
Lord of Château-Chinon
Helgaud Hugues Geoffroy I du Perche
(† 1039)
Count of Perche
Viscount of Châteaudun
Hugues du Perche
(† 1000)
Hugues Hugues I du Perche
(† 1044)
Count of Perche
Viscount of Châteaudun
Rotrou II du Perche
(† 1080)
Viscount of Châteaudun
Count of Perche
Geoffroy II Ferréol
(† 1044)
Geoffroy II du Perche
(† 1110)
Count of Perche
Hugues III
(† 1110)
Viscount of Châteaudun
Geoffrey III
(† 1097)
Count of Anjou
Fulk IV
(† 1109)
Count of Anjou
Rotrou III du Perche
(† 1144)
Count of Perche
Matilde
x Geoffroy III de Vendôme
Count of Vendôme
Geoffroy III
(† 1140/5)
Viscount of Châteaudun
Fulk V
(1090 † 1144)
Count of Anjou
King of Jerusalem
Philippa
x Elias II, Count of Maine
Count of Maine
Rotrou IV du Perche
(† 1191)
Count of Perche
Étienne du Perche
(1140 † 1169)
Hugues IV de Châteaudun
(† 1180)
Viscount of Châteaudun
Geoffroy V
Plantagenet

(† 1151)
Kings of Jerusalem
Geoffroy III du Perche
(† 1202)
Count of Perche
Guillaume du Perche
(† 1226)
Bishop of Châlon
Count of Perche
Geoffroy IV
(† 1176)
Viscount of Châteaudun
Hugues V
(† 1191)
Viscount of Châteaudun

Plantagenets
Thomas du Perche
(† 1217)
Count of Perche
Geoffroy V
(† 1218)
Viscount of Châteaudun
Geoffroy VI
(† 1249)
Viscount of Châteaudun
Robert I de Dreux
(1217 † 1264)
Lord of Beu
Clémence de Châteaudun
(† 1259)
Viscountess of Châteaudun
Jeanne
x Jean I
Count of Montfort

Sources[edit]