“Odo comes” restored “villam...Culturas” to Marmoutier, for the souls of “...domini Hugonis archiepiscopi, cujus ibi corpus...jacet”, by charter dated to , subscribed by “Berte comitissæ uxoris eius, majoris filii eius Teutboldi, filii eius Odonis adhuc in cunabulo”. "Odonis comitis, Rotberti filii eius, Tetbaldi filius eius, Odonis alterius filius, Hugonis vicecomitis Castridunensis, Raherii de Montigniaco" subscribed the charter dated 989 under which "Robert Vicomte de Blois" donated property to the abbey of Evron. A charter dated 996 records the confirmation by "comitissæ Berthæ" of the donation by "Odo comes" of property for the construction of the abbey of Bourgeuil, with the consent of "filiorum suorum Teobaldi…atque Odonis".
He succeeded his brother in  as EUDES II Comte de Blois, de Chartres, de Châteaudun et de Tours. “Berta...regina cum filiis meis Tetbaldo...episcopo nec non Odoni comitis” donated tonlieu over boats at Blois to Marmoutier by undated charter. "Bertæ reginæ, Odonis comitis filii eius…" subscribed the charter dated 1004 under which "Gislebertus prepositus" recorded a donation. Rodulfus Glaber records that "secundus Odo filius…prioris Odonis" seized all the estates of "Stephanus comes Trecorum et Meldorum, Heriberti filius" after the latter died without an heir.
Comte de Sancerre, Seigneur de Chinon et de Saumur. Guillaume de Jumièges records that Comte Eudes refused to return the castle of Dreux to Richard II Duke of Normandy after the death of his first wife. Rodulfus Glaber refers to the "perpetual quarrels and frequent wars" between "secundus Odo filius…prioris Odonis" and Foulques III Comte d'Anjou. "Odonis…comitis" [Eudes II Comte de Blois] donated part of the county of Beauvais to "Rogerius sanctæ Belvacensis sedis…pontifex", recorded in the charter dated 1015, confirmed by Robert II King of France. The Chronicon Sancti Petri Vivi Senonensis records that, after fleeing Sens in 1016, Renaud [II] Comte de Sens sought refuge with “Odonem Comitem” (presumably Eudes II Comte de Blois) with whom he built “castrum Monsteriolum…super Sequanæ fluvium” (Montereau). "Odo comes filius [Odonis comitis]" confirmed a donation of his father by charter dated to [1032/37], subscribed by "Tetbaldi filii eius, matris eius Ermengardis…Hervei vicecomitis". Rodulfus Glauber records the challenge by "Odo natus ex filia Chuonradi regis Austrasiorum, Berta nomine" to the accession by Emperor Konrad II to the kingdom of Burgundy after the death of his maternal uncle Rudolf III King of Burgundy. Herimannus names "Odo sororis eiusdem [=Roudolfus, ignavus Burgundiæ regulus] filium, princeps Gallicæ Campaniæ" when recording his challenge to the succession of Emperor Konrad II to the kingdom of Burgundy in 1032. After the emperor agreed an alliance with Henri I King of France, comte Eudes besieged Toul but was forced to retreat by the emperor who arrived in the town 20 Aug 1033. In Spring 1034, he ravaged the Meuse valley.
Eudes captured Bar 14 Nov 1037, intending to continue to Aix-la-Chapelle where he would declare himself emperor. The Annales Sangallenses record the battle between "Gozelinum et Uotonem comittibus" in 1037 in which Comte Eudes was defeated and killed. His forces were defeated at Commercy where Comte Eudes was killed. Rodolfus Glaber records his place of burial. The necrology of Saint-Cloud records the death "XII Kal Dec" of "Odo palacii comes". The necrology of Chartres cathedral records the death "XVII Kal Dec" of "Odo palatii comes". The necrology of Verdun Saint-Vanne records the death "XVII Kal Dec" of "Odo, Manasses, Euzuinus, Dudo comites ante Bar castrum prelio interempti". 1