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Birth:          ABT  950 
Death:          27 Jun  992 Battle of Conquereuil
Cause of Death: killed
Burial:         Mount Saint-Michel Abbey

Notes
https://en.wikipedia.org/wiki/Conan_I_of_Rennes
Conan I († June 27, 992) nicknamed Le Tort (The Crooked) was the Duke of Brittany 
from 990 to his death. He was the son of Judicael Berengar, succeeding his father as 
Count of Rennes in 970.[1]

He assumed the title of Duke of Brittany in the spring of 990 following his attack on 
Nantes and the subsequent death of Count Alan.[2] As duke his rule succeeded the 
Regency that governed Brittany during the life of Drogo and the fractured rule of 
Brittany after Drogo's death by his illegitimate brothers Hoël and Guerech, and the 
latter's son Alan.[3] The fractured rule over Brittany resulted in a short vacancy in the 
title Duke of Brittany. Conan I had to ally himself with the Odo I, Count of Blois in 
order to defeat Judicael Berengar before he could assume the title of Duke.[4]

Mont Saint-Michel, endowed by Conan I, and his final resting place
In a charter dated 28 July 990, Conan gave the lands of Villamée, Lillele and Passille 
to Mont Saint-Michel, all of which later became part of the seigneury of Fougères. [5]

Conan married Ermengarde-Gerberga of Anjou,[a][6] in 973, daughter of Geoffrey I, 
Count of Anjou and Adele of Vermandois.[1]

Conan's alliance with the Odo of Blois [3] had helped him defeat Judicael Berengar. 
However the alliance with Blois became troublesome and he later needed to "rid 
himself of influence from Blois, [which he accomplished by signing] a pact with 
Richard I of Normandy; [this pact] established firm Breton-Norman links for the first 
time." [4] Richard I had married the daughter of Hugh I the Great, and after this 
marriage had re-asserted his father's claim as Overlord of the Breton duchy. [4] Conan 
I's pact with Normandy strengthened that assertion but the historical documentation 
for that Overlordship claim remains doubtful because it largely appears only in the less 
than authoritative writings of Dudo of Saint-Quentin. [4] [b]

Conan died fighting his brother-in-law Fulk Nerra, Count of Anjou at the Battle of 
Conquereuil on 27 June 992.[7] Conan is buried at Mont Saint-Michel Abbey. [8]

By his wife Ermengarde-Gerberga he had the following issue:
Geoffrey (c.980-1008), the eventual heir.[1]
Judith (982–1017), married Richard II, Duke of Normandy.[1]
Judicael, count of Porhoët (died 1037).[1]
Hernod.[1]
Catuallon, Abbot of Redon

Parents
____ Judicael Berenger (ABT  910 -  970)
____ Geberge (ABT  920 - )

Siblings
____ Conan I "Le Tort" (ABT  950 - 27 Jun  992)
____ Guenergant (ABT  954 - BEF 1038)

Marriage To D'ANJOU Ermengarde-Gerberga (ABT  956 - ABT 1024)
    m.  973 

Notes

Parents
____ Geoffrey I "Grisgonelle" (ABT 11 Nov  938 - 21 Jul  987)
OF MEAUX (VERMANDOIS) Adele (Adelaide) (ABT  934 - ABT  982)

Children by D'ANJOU Ermengarde-Gerberga ABT  956 - ABT 1024
----- ----- ()
OF RENNES Geoffrey (ABT  980 - 20 Nov 1008)
OF BRITTANY (RENNES) Judith ( 982 - 1017)

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