Odo "Eudes" I, Count of Blois, Chartres, Reims, Provins, Châteaudun, and Omois
- Born: Abt 950
- Marriage (1): Bertha of Burgundy about 983
- Died: 12 Mar 996, Tours, Indre et Loire, Centre, France about age 46
General Notes:
Odo I (also spelled Eudes) (c.?950 \endash 12 March 996), Count of Blois, Chartres, Reims, Provins, Châteaudun, and Omois, was the son of Theobald I of Blois and Luitgard, daughter of Herbert II of Vermandois.[1] He received the title of count palatine, which was traditional in his family, from King Lothair of West Francia.
Like his relations, the counts of Vermandois, he remained faithful to the Carolingians against the Capetians. Following the war between his father and Odalric, Archbishop of Reims, over the castle of Coucy, he received the castle to hold it from the archbishop.
In the 970s, in the wars for control of Brittany, he subjugated the county of Rennes and Count Conan I affirmed the rights of his family in the region. Around 977, his father died and he succeeded in his counties.
In 987, Odo supported Charles of Lorraine against Hugh Capet.[2] In June 991, he took Melun.[3] Hugh Capet, Bouchard of Vendome, Richard I of Normandy and Fulk Nerra, assembled against him and retook Melun in late 991.[3]
Near 995, he entered into a war against Fulk, who was already at war with Geoffrey I of Brittany. Odo allied with his brother-in-law William IV of Aquitaine and Baldwin IV of Flanders. Even his old enemy, Richard of Normandy joined in the war on Fulk. In the winter of 995 \endash 996, they besieged Langeais, however Odo became ill and was taken to the monastery of Marmoutier at Tours where he died on 12 March 996.[4][5]
Odo married Bertha of Burgundy, daughter of Conrad I, King of Burgundy and Matilda of France, about 983. (Bertha of Burgundy was born in 964 and died on 16 Jan 1010.)
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