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Birth:          ABT  911 of Blois, France
Death:          16 Jan  975 

Notes
m 943/944
https://en.wikipedia.org/wiki/Theobald_I,_Count_of_Blois
Theobald I (913–975), called the Trickster (le Tricheur meaning cheater), was the first 
count of Blois, Chartres, and Châteaudun as well as count of Tours.
Life[edit]

Theobald I was the son of Theobald le Vieux of Blois,[a][1] who from 908 on was 
viscomte of Tours.[2] Theobald le Vieux's wife, the mother of Theobald I, was 
Richildis, a great-granddaughter of Rorgon I, Count of Maine.[1] Theobald I was 
initially a vassal of Hugh the Great, Duke of France.[3] Around 945, Louis IV was 
captured by Northmen and given over to Hugh the Great, who placed the king in 
Theobald's custody.[3] After about a year in his vassal's custody king Louis 
negotiated his freedom by offering Hugh the city of Laon which Hugh then gave to 
Theobald.[4] Theobald was the count of Tours from 942, was also count of Blois and 
in 960 count of Châteaudun and Chartres.[5]

Theobald's sister had married Alan II of Nantes, the Duke of Brittany, giving Theobald 
influence all the way to Rennes.[6] However the death of Alan II left a void in Brittany 
and left it vulnerable to encroachment by either the Normans or the Angevins.[7] 
Theobald made an alliance with Fulk II of Anjou, which gave him control of Saumur, a 
strategic citadel located between the Loire and Thouet rivers guarding the Angevin 
march.[7] This included control of the monastery of Saint-Florent inside the walls of 
Saumur.[7] In turn the recently widowed Fulk married Theobald's sister, the widow of 
Alan II of Nantes.[7]

In 960, he began opposing Richard I of Normandy and entered into a long war with 
the Normans. In 961, he attacked Évreux. The Normans responded by attacking 
Dunois. In 962, he launched an assault on Rouen which failed. The Normans burned 
Chartres in response. He took control of the fortresses of Saint-Aignan in the Loir-et-
Cher, Vierzon, and Anguillon in Berry. During the minority of Hugh Capet, he reinforced 
Chartres and Châteaudun. He founded the Château de Chinon. By his death, he had 
built a vast power on the Loire, dominating central France.

About 943-44,[8] he married Luitgarde of Vermandois, widow of William I of 
Normandy.[9] She was the daughter of Herbert II, Count of Vermandois and Hildebrand 
of France, daughter of king Robert I of France.[10] Her half-brother was Hugh the 
Great Duke of France.[11]

Family[edit]

His wife Luitgarde of Vermandois bore him:
Theobald (d. 962).[8]
Hugh, Archbishop of Bourges (d. 985).[8]
Odo (d. 995), succeeded his father as Count of Blois.[8]
Hildegarde, married Bouchard de Bray, Lord of Montmorency.[8]
Emma (d. aft. 1003), married William IV of Aquitaine.[b][8]

Parents
____ Theobald (Thibaud) (Gerlon) I (ABT  854 -  942)
DE BLOIS Richilde (ABT  892 - )

Siblings
OF BLOIS Theobald (Thibault) II "le Tricheur" ("the Cheat") (ABT  911 - 16 Jan  975)
OF BLOIS Gerlotte (ABT  913 - )

Marriage To DE VERMANDOIS Luitgarde (ABT  914 - 9 Feb  978)
    m. ABT  943 her 2d

Notes

Parents
____ Herbert II (ABT  884 - 23 Feb  943)
____ Adele (ABT  885 - )

Children by DE VERMANDOIS Luitgarde ABT  914 - 9 Feb  978
OF BLOIS Odo (Eudes) I (ABT  945 - 12 Mar  995)
OF BLOIS Emma (ABT  954 - AFT 27 Dec 1003)

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